blue

Related to blue: blue air, Blue film

blue

1. adjective Sad or depressed. I'm sorry, I'm just feeling a bit blue after getting back my exam results. Most people love the holidays, but they always make me blue.
2. adjective Obscene, vulgar, or risqué; dirty. My grandmother is the sweetest old lady you'll ever meet, but she sure loves telling blue jokes! I remember the video store down the street had a section of blue movies for adults that they would keep behind a black curtain.
3. adjective Of meat, especially steak, completely uncooked in the center; extra rare. A: "And how would you like your filet mignon, sir?" B: "Blue, please."
4. adjective Of or referring to a political party whose representative color is blue. Analysts are predicting a blue wave in the congressional elections this year. It looks as though the seats of Westminster will be mostly blue after the Tories' dominance in the recent general election.
5. noun, slang A police officer. Primarily heard in US. I never thought Jack would be a blue when he grew up, after all the trouble he used to get into as a kid.
6. noun, slang A 10 mg tablet of diazepam (more commonly known as Valium), which is blue in color. Usually used plurally. Primarily heard in US. I had to take a blue to calm me down before the big presentation. Apparently, he died of an overdose of blues.
Farlex Dictionary of Idioms.

*blues

 
1. sadness; a mood of depression. (*Typically: get ~; have ~.) You'll have to excuse Bill. He's getting the blues thinking about Jane. I get the blues every time I hear that song.
2. a traditional style of popular music characterized by lyrics expressing hardship, lost love, etc. Buddy had been singing the blues ever since the Depression.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

blue

1. mod. depressed; melancholy. That music always makes me blue.
2. mod. obscene; vulgar; dirty. Those blue jokes don’t go over very well around here.
3. n. the sky; the heavens. The idea came to me right out of the blue.
4. mod. alcohol intoxicated. You might say I’m blue. Others might note that I am stoned.
5. n. an amphetamine tablet or capsule, especially a blue one. (Drugs.) How are blues different from reds and yellows?
6. n. a police officer; the police. The blues will be here in a minute.
7. n. a 10-mg tablet of Valium. (Drugs.) In treatment they kept giving me blues to calm me down. Now I can’t live without them.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See:
  • (as) clear as the sky is blue
  • (one's) lips turn blue
  • a blue funk
  • a blue-eyed boy
  • a bolt from the blue
  • be in a (blue) funk
  • be in a blue funk
  • between a rock and a hard place
  • between the devil and the deep blue sea
  • Big Blue
  • black and blue
  • black-and-blue
  • blue
  • blue and white
  • blue around the gills
  • blue balls
  • blue blood
  • blue book
  • blue boys
  • blue chamber
  • blue chip
  • blue coats
  • blue code of silence
  • blue collar
  • blue devils
  • blue eyed
  • blue falcon
  • blue film
  • blue flu
  • blue funk
  • blue funk, in a
  • blue funk, to be in a
  • blue gown
  • blue hair
  • blue in the face
  • blue in the face, to be/until one is
  • Blue Lives Matter
  • blue moon
  • blue movie
  • blue note
  • blue on blue
  • blue pill
  • blue plate special
  • blue ribbon
  • blue screen of death
  • blue state
  • blue streak
  • blue suit
  • blue suits
  • blue wall of silence
  • blue wave
  • blue-collar staff
  • blue-collar worker
  • blued, screwed, and tattooed
  • blue-eyed
  • blue-eyed boy
  • blue-eyed girl
  • blue-light special
  • blues and twos
  • blue-sky research
  • blue-sky thinking
  • bolt from the blue
  • bolt from the blue, a
  • boys and girls in blue
  • boys in blue
  • burn with a low blue flame
  • caught between the devil and the deep blue sea
  • clear blue water
  • come out of a clear blue sky
  • come out of a/the clear blue sky
  • come out of the blue
  • curse a blue streak
  • cuss a blue streak
  • damn it to blue blazes
  • Damn it to blue blazes!
  • devil and deep blue sea
  • dip into the blue
  • do something until you are blue in the face
  • feel blue
  • girls in blue
  • go blue
  • have a blue fit
  • have a pink fit
  • have a pink/blue fit
  • have the blues
  • hoist the blue peter
  • in a (blue) funk
  • in a blue funk
  • in blue blazes?
  • into the blue
  • into the wide blue yonder
  • into the wild blue yonder
  • into thin air
  • light the (blue) touch paper
  • light the blue touch paper
  • like a blue-arsed fly
  • like a bolt from the blue
  • like a bolt out of the blue
  • like blue blazes
  • like greased lightning
  • little boy blue
  • look through blue glasses
  • men (and women) in blue
  • men in blue
  • once in a blue moon
  • out of a clear (blue) sky
  • out of a clear blue sky
  • out of a/the clear (blue) sky
  • out of the blue
  • pale around the gills
  • run around like a blue-arsed fly
  • rush around like a blue-arsed fly
  • scream bloody/blue murder, to
  • scream blue murder
  • screwed, blued, and tattooed
  • swear a blue streak
  • talk a blue streak
  • talk someone's arm off
  • talk till (one) is blue in the face
  • talk till (one's) face is blue
  • talk until (one) is blue in the face
  • talk until (one's) face is blue
  • talk until one is blue in the face
  • the boys in blue
  • the wide blue yonder
  • till (one) is blue in the face
  • till you're blue in the face
  • true blue
  • turn the air blue
  • until (one) is blue in the face
  • until you are blue in the face
  • what the (blue) blazes
  • women in blue
  • your blue-eyed boy
  • your, somebody's, etc. blue-eyed boy
References in classic literature
It appears, then, that the Eatanswill people, like the people of many other small towns, considered themselves of the utmost and most mighty importance, and that every man in Eatanswill, conscious of the weight that attached to his example, felt himself bound to unite, heart and soul, with one of the two great parties that divided the town--the Blues and the Buffs.
"Yes, " assented the girl, "and there are blue rooms in each of those houses--when all the rooms are blue then the whole outside of the house will be blue as is the Blue Place of Seven Skulls.
"And the skulls with blue upon them?" inquired Bradley.
"They were murdered--some of them; those with only a small amount of blue were murderers--known murderers.
As they talked in low tones they had moved from the room of the death shaft into an all blue room adjoining, where they sat down together in a corner with their backs against a wall and drew a pile of hides over themselves.
Bradley could guess all this by the increased volume of sound and the dismal greetings; but the sudden silence that almost immediately ensued he could not fathom, for he could not know that from beneath one of the hides that covered him protruded one of his heavy army shoes, or that some eighteen large Wieroos with robes either solid red or slashed with red or blue were standing gazing at it.
She said that everything had colour in her thought; the months of the year ran through all the tints of the spectrum, the days of the week were arrayed as Solomon in his glory, morning was golden, noon orange, evening crystal blue, and night violet.
When we finished our lunch the barrens were already wrapping themselves in a dim, blue dusk and falling upon rest in dell and dingle.
Marah Huber -- Blue -- Shopping in Style -- Beginning and STEAM Clothing 1.
2 Referring to Diagram II, join navy E, dark blue E, dark blue F, medium blue G, medium blue H, light blue I and light blue C in order shown to make Block 0.
The companies have named Paul Markovich, the president and chief executive officer of Blue Shield of California, which is based in San Francisco, to be the Blue Cross and Blue Shield Association's new chairman.
New York City: A blue human is a cold, dead or sad human.
A matte blue plastic case is presented with a matte blue silicone strap, blue loop and blue plastic buckle.
Blue Cross's Team Blue employees are providing all of the volunteer labor for the project, and Habitat will lead volunteers through the 7-8 week build process with support from experienced construction professionals.