rocking

(as) nervous as a long-tailed cat in a room full of rocking chairs

Extremely nervous. (The cat's long tail would be in danger of getting caught under a swaying rocking chair.) I was nervous as a long-tailed cat in a room full of rocking chairs as I waited for them to announce the winner.
See also: cat, chair, full, nervous, of, rocking, room

(as) rare as rocking horse crap

vulgar slang Extremely rare or unlikely; all but, or most likely, impossible or non-existent. Primarily heard in Ireland. An honest person in politics? Yeah, that's as rare as rocking horse crap. I'm sorry to say, but the part this engine needs is rare as rocking horse crap. They haven't manufactured these in nearly 50 years!
See also: crap, horse, rare, rocking

(as) rare as rocking horse manure

slang Extremely rare or unlikely; all but, or most likely, impossible or non-existent. Primarily heard in Ireland. An honest person in politics? Yeah, that's as rare as rocking horse manure. I'm sorry to say, but the part this engine needs is rare as rocking horse manure. They haven't manufactured these in nearly 50 years!
See also: horse, manure, rare, rocking

(as) rare as rocking horse poo

vulgar slang Extremely rare or unlikely; all but, or most likely, impossible or non-existent. Primarily heard in Ireland. An honest person in politics? Yeah, that's as rare as rocking horse poo. I'm sorry to say, but the part this engine needs is rare as rocking horse poo. They haven't manufactured these in nearly 50 years!
See also: horse, poo, rare, rocking

(as) rare as rocking horse shit

vulgar slang Extremely rare or unlikely; all but, or most likely, impossible or non-existent. Primarily heard in Ireland. An honest person in politics? Yeah, that's as rare as rocking horse shit. I'm sorry to say, but the part this engine needs is rare as rocking horse shit. They haven't manufactured these in nearly 50 years!
See also: horse, rare, rocking, shit

rock

1. noun, slang A precious gem, especially a diamond. A: "Did you see that rock on her finger?" B: "Yeah, I didn't know she was engaged!" The rocks in that necklace are worth nearly a million dollars.
2. noun Rock music, a genre of music characterized by the use of the electric guitar and bass. A shortened form of "rock and roll," from which it originated. I was into rock when I was in high school, but now I'm more into electronic music. The bar always blasts rock at such a high volume that I can never hear what anyone is saying.
3. noun, slang An ice cube. Typically used in the plural. I'd like a whiskey on the rocks, please.
4. noun, vulgar slang A testicle. Almost always used figuratively to mean confidence, courage, bravado, etc. Exclusively used in the plural. You've got some rocks on you to stand up to the boss like that, kid.
5. noun, slang A piece of crack cocaine. Typically used in the plural. Denny got caught selling rocks and got hit with a mandatory minimum.
6. adjective Pertaining to rock music. This is my favorite rock station on the radio. The band surprised its fans when it announced that its next album would be a rock opera.
7. verb To perform rock music, especially skillfully or with great energy and enthusiasm. My days of going on stage to rock are behind me at this point. Don't worry about the audience. Just go out there and rock.
8. verb To dance or move along to rock music or a similar genre. This song really gets me rocking!
9. verb, slang To be excellent or awesome. You got me my favorite doughnut! You rock! I can't believe you didn't like that movie! It rocked! Wow, you got into your dream school! That rocks!

rock (one) to (one's) core

To affect one very deeply or profoundly, especially in a startling or revelatory fashion. The sudden arrest of my business partner for murder has rocked me to my core, leaving me questioning everything I once knew. The dramatic ending to the film rocked him to his core.
See also: core, rock

rock along

1. To enjoy some piece of energetic music, especially rock and roll, by singing or dancing along to it. A crowd of nearly 20,000 fans rocked along to the songs of the ultra-popular boy band. I was so embarrassed when I walked into the kitchen and saw my parents rocking along with some song from the '70s.
2. To continue progressing without difficulty or hardship. With the success we attained so early on, many of us had the delusional mindset that we could keep rocking along without making any real changes to the way we did business. Our country had been rocking along so steadily for the last 20 years that we were totally unprepared when the economic crisis hit.
See also: rock

rock around

To sway, tilt, or shake back and forth, side to side. The suspension on my uncle's old truck was totally shot, so we just kept rocking around as drove through the bumpy back roads on his land. The ship rocked around as the storm hammered it with waves and heavy winds.
See also: around, rock

rock on

An expression of happiness, excitement, or enthusiasm. A: "I hear our class won a trip to Paris!" B: "Rock on! I've always wanted to see Paris!"
See also: on, rock

rock out

To dance or listen to music with great intensity and enthusiasm. It was so much fun watching the kids rock out to Billy Joel. After a long, stressful week, I find that rocking out to some hardcore death metal helps me let off some steam.
See also: out, rock

rock the boat

To do or say something that might endanger a stable situation or upset the status quo. None of my family members are fighting with each other right now, so please don't rock the boat by bringing up politics or any other controversial topics. Many people feel the newspaper is too soft on the government and never rocks the boat when asking questions directly to the politicians.
See also: boat, rock

rock the foundations of (something)

To impact something in a way that affects its very essence, especially concerning its values or beliefs. The death of her son rocked the foundations of her beliefs. The election of the outsider candidate rocked the foundations of the party, and led to a lot of soul-searching among its members.
See also: foundation, of, rock

rock the house

slang To elicit an enthusiastic response from an audience that one is performing for. Man, we really rocked the house! Did you see all those people dancing to our music? It's a great speech—I think you're going to rock the house tonight.
See also: house, rock

rock to (something)

1. To dance, sway, or sing along very enthusiastically to some music, especially rock and roll. My dad always embarrasses me so much when he starts rocking to AC/DC in the car. I've never seen anyone rock to Mozart like that before.
2. To cause or help someone to fall asleep by moving them back and forth or side to side in a gentle, rhythmic motion. In this usage, a noun or pronoun is used between "rock" and "to." I've been trying to rock the baby to sleep for hours now, but she just won't settle. He held his sick husband in his arms and rocked him to sleep.
See also: rock

rock up

To arrive (at or to something) in a very casual manner, especially when one is late. That's the last time I invited Jeff to a dinner party—we were nearly finished with the main course by the time he decided to rock up. I don't think it matters what time we rock up, so let's not rush.
See also: rock, up

rock up in (something)

1. To arrive in a particular vehicle. The phrase "to (something)" can be used between "rock" and "up." I hate when my dad rocks up in his clunky old van to pick me up from school. They rocked up to the party in a stretch limousine.
2. To arrive wearing a particular outfit. The phrase "to (something)" can be used between "rock" and "up." He rocked up to the party in a bizarre floral-print tuxedo. Make sure you budget enough money and time to find a wedding dress you're happy with. You don't want to rock up in something you end up regretting later on.
See also: rock, up

rocking horse manure

slang Something is extremely rare or unlikely; all but, or most likely, impossible or non-existent. Typically used in the phrase "(as) rare as rocking horse manure." An honest person in politics? Yeah, that's as rare as rocking horse manure. I'm sorry to say, but the part this engine needs is rare as rocking horse manure. They haven't manufactured these in nearly 50 years!
See also: horse, manure, rocking

rocking horse shit

vulgar slang Something is extremely rare or unlikely; all but, or most likely, impossible or non-existent. Often used in the phrase "(as) rare as rocking horse shit." Primarily heard in Ireland. An honest person in politics? Yeah, that's as rare as rocking horse shit. I'm sorry to say, but the part this engine needs is rare as rocking horse shit. They haven't manufactured these in nearly 50 years!
See also: horse, rocking, shit
Farlex Dictionary of Idioms.

rock around

to tilt or totter about. The boat rocked around, tossing the passengers to and fro. The road was bumpy and the huge car rocked around.
See also: around, rock

rock the boat

 
1. Lit. to do something to move a boat from side to side, causing it to rock. (Often in a negative sense.) Sit down and stop rocking the boat. You'll turn it over!
2. Fig. to cause trouble where none is welcome; to disturb a situation that is otherwise stable and satisfactory. (Often negative.) Look, Tom, everything is going fine here. Don't rock the boat! You can depend on Tom to mess things up by rocking the boat.
See also: boat, rock
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

rock the boat

Disturb a stable situation, as in An easygoing manager, he won't rock the boat unless it's absolutely necessary. This idiom alludes to capsizing a small vessel, such as a canoe, by moving about in it too violently. [Colloquial; early 1900s]
See also: boat, rock
The American Heritage® Dictionary of Idioms by Christine Ammer.

rock the boat

COMMON If someone rocks the boat, they do something which causes trouble or problems in a stable situation. He was careful not to rock the boat with any criticism. Diplomats are expecting so much instability after his death that they argue it's unwise to rock the boat now. Note: You can also talk about boat-rocking. I'm sometimes critical of the organization, which is seen as boat-rocking, upsetting a comfortable arrangement.
See also: boat, rock
Collins COBUILD Idioms Dictionary, 3rd ed.

rock the boat

say or do something to disturb an existing situation and upset other people. informal
1999 Times The six candidates are so determined not to rock the boat that they are in danger of saying nothing of interest.
See also: boat, rock

rocking-horse manure

something extremely rare. Australian informal
See also: manure
Farlex Partner Idioms Dictionary

rock the ˈboat

(informal) do something that might upset somebody/something, cause problems or change the balance of a situation in some way: Politicians who are prepared to rock the boat are popular with newspapers but not with their parties.
See also: boat, rock
Farlex Partner Idioms Dictionary

rock out

v. Slang
To play or listen to rock music enthusiastically: It was an awesome concert—the band really rocked out.
See also: out, rock
The American Heritage® Dictionary of Phrasal Verbs.

rock

1. and rock candy n. crack, a crystallized form of cocaine. (see also rocks.) Some call it rock candy, and some call it crack.
2. n. a crystallized form of heroin used for smoking. (Drugs.) Max is hooked on rock—the kind that you smoke. Powder is everywhere, but you can hardly find rock anymore.
3. n. a diamond or other gemstone. Look at the size of that rock in her ring.
4. Go to rocks.
5. n. a baseball; a basketball. Michael passed the rock to Scottie, who turned and dropped it in the basket.
6. in. to be really great. The concerts didn’t rock, but we had a good time throwing chairs.

rocking

mod. excellent. (Collegiate.) We had a rocking time!
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions

rock the boat

To disturb the balance or routine of a situation: He has an easygoing managerial style and won't rock the boat unless absolutely necessary.
See also: boat, rock
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • (as) nervous as a long-tailed cat in a room full of rocking chairs
  • chair
  • nervous
  • room
  • tail
  • LOLcat
  • cat ice
  • cool cat
  • roof
  • faster than a cat lapping chain lightning