clue

be clued in

To be familiar with or aware of the particulars of a situation, especially through inference, previous knowledge, or by being privy to inside information. Usually followed by "on," "to," or "about." By the end of the week, everyone was clued in on the reason for the professor's sudden absence from class. You need to be clued in to the way people behave in social situations!
See also: clue

clue (one) in

To give one new information or to correct misinformation. Why is everyone mad at Bruce this morning? Clue me in. Someone needs to clue her in before she keeps spreading these lies.
See also: clue

clue stick

A metaphorical stick one uses to "beat" correct information into an ignorant, incompetent, or slow-learning person (i.e., to help them "get a clue"). I hate reading comments on online news articles—there are so many stupid people out there that I just want to get a big clue stick and knock some sense into them with it!
See also: clue, stick

clue-by-four

A metaphorical stick one uses to "beat" correct information into an ignorant, incompetent, or slow-learning person (i.e., to help them "get a clue"). A pun on the term "two-by-four," a piece of timber that measures 2 by 4 inches (5 by 10 cm) in height and width. I hate reading comments on online news articles—there are so many stupid people out there that I just want to get a big clue-by-four and knock some sense into them with it!

get a clue

To understand or see the reality of a situation. Typically said as an imperative to indicate one's annoyance or frustration. Oh, get a clue—he's not into you! If he were, he would have asked you out by now. You guys need to get a clue—this place is going down the tubes.
See also: clue, get

get clued in (to something)

To become familiar with or aware of the particulars of a situation, especially through inference, previous knowledge, or by being privy to inside information. I spent the first day on the job getting clued in to the way the company operates. If you don't know who really runs the show around here, you need to get clued in and fast!
See also: clue, get

not a clue

Not even the slightest notion about something. Do I know where your red shoes are? Not a clue—go ask your sister. A: "Did you understand what the teacher was talking about?" B: "Nope, not a clue."
See also: clue, not

not have a clue

1. To not have even a remote grasp or understanding of something; to be hopelessly confused or ignorant about something. You'd expect the average citizen to struggle to explain the workings of government, but now it seems like even most politicians don't have a clue! You don't have a clue about how to talk to people, do you? When it comes to trigonometry, I just don't have a clue.
2. To be completely unaware of something. A: "Do you think Paul suspects that we're having a surprise party for him? B: "No, he doesn't have a clue!"
See also: clue, have, not

What was your first clue?

A rhetorical question used to point out the obviousness of some conclusion. A: "I think something is wrong with the engine." B: "Oh really, what was your first clue? The smoke pouring out of it?"
See also: first, what
Farlex Dictionary of Idioms.

clue someone in (on something)

to inform someone of something. Please clue me in on what's been going on. Clue in those guys before it's too late.
See also: clue

have a clue (about something)

Fig. to know anything about something; to have even a hint about someone or something. (Usually negative.) I don't have a clue about where to start looking for Jim. Why do you think I have a clue about Tom's disappearance?
See also: clue, have

not a glimmer (of an idea)

 and not a clue
Fig. no idea. A: Where's the subway? B: Sorry. Not a glimmer of an idea. How long till we're there? Not a clue.
See also: glimmer, not
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

clue in

Also, clue up. Give someone guiding information, as in It's time someone clued us in on what's happening, or I hope they clue us up soon. This expression, which uses the verb clue in the sense of "inform," is sometimes put simply as clue (as in I'll clue you-this isn't going to work). [Colloquial; mid-1900s] Also see not have a clue.
See also: clue

not have a clue

Have no idea or inkling about something, as in Jane doesn't have a clue as to why John won't call her, or Do you know what's wrong with the boiler?-No, I haven't a clue. This usage was first recorded in 1928.
See also: clue, have, not
The American Heritage® Dictionary of Idioms by Christine Ammer.

not have a clue

INFORMAL
COMMON If you do not have a clue about something, you do not know anything about it or you have no idea what to do about it. When I met my wife she didn't have any clue about cricket. Nobody has a clue where he's gone. I don't have a clue what I'm supposed to be doing.
See also: clue, have, not
Collins COBUILD Idioms Dictionary, 3rd ed.

not have a clue

know nothing about something or about how to do something. informal
See also: clue, have, not
Farlex Partner Idioms Dictionary

not have a ˈclue

(informal)
1 know nothing about something or about how to do something: ‘Who’s that woman over there?’ ‘I’m afraid I don’t have a clue.’ I haven’t a clue how to get there.
2 (disapproving) be stupid; lack skill or ability: It’s a waste of time trying to teach him anything: he hasn’t got a clue. ▶ ˈclueless adj. (informal, disapproving) very stupid; not able to understand or to do something: He’s completely clueless about computers.
See also: clue, have, not
Farlex Partner Idioms Dictionary

clue in

v.
To provide someone with important or exclusive information about something: I hoped my friend who worked for a senator would clue me in to what the government was planning to do. My friend clued me in on the local club scene.
See also: clue
The American Heritage® Dictionary of Phrasal Verbs.

clue someone in

tv. to set someone straight (about something); to inform someone of the facts. What’s going on? Clue me in.
See also: clue, someone
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • be clued in
  • get clued in (to something)
  • in/out of the loop
  • watch for
  • watch for (someone or something)
  • particulars
  • the particulars
  • aware
  • be aware of (something)
  • re-collect
References in periodicals archive
Sarah expressed his belief that the whole process took place between "Israel" and armed terrorist groups in the country while the remaining details are part of practical arrangements for this matter, which the Syrian state has no clue about it.
"I think we just found our next clue," says the actor, with a "to be continued" message at the end of the film.
'Each team consisted of two to five players and their missions were to solve the riddles and find the clues. These clues also involved completion of certain challenges,' Mohammed al Sikry, operations manager at Xcape Muscat said.
Bouwman was inspired by a similar event created by Susan Cooper from the Wichita Falls Public Library and borrowed some of her clues.
In some cases, the clue might involve them filling out a crossword puzzle or a diagram that uses the terminology they've learned.
Meet the 4G dual SIM smart phone everyone's been waiting for Phicomm Clue 630, with an ultra compact body and streamlined design that gives an excellent grip.
BEIRUT: "This is much better than going out for a drink," my team agreed after 60 nerve-wracking minutes at the Clue Club, a new live-action escape game which recently opened its doors in Hamra.
Abu Dhabi: Explore and discover Abu Dhabi through 70 clues! This is the unique challenge an animal welfare group is throwing at Abu Dhabi residents.
According to (http://www.huffingtonpost.com/2014/11/04/american-horror-story-season-5_n_6096760.html) Huffington Post , fans on Reddit have spotted more appearances of the big clue. In episode 2, the two cups of coffee that the assistant, at the toy shop, is holding also has top hat printed on them.
For example, while the map indicates a room or an area of the park, or museum, and so on, the clue could specify the object: "I'm blue and I'm round and I have water inside" - a vase.
Q I have wondered for a long time what the proper way to evaluate a urine microscopic bacterial count is when the patient has many "clue" cells but there are no free bacteria in the background.
Seattle, WA, April 28, 2012 --(PR.com)-- In honor of Clue Dental Marketing's upcoming launch in Seattle, the dental marketing company announces that they are offering a special for Seattle dentists throughout the month of May.
Why not theme the event as a pirate's treasure hunt with a 6 map instead of clues or lay a trail with one clue leading to another?
Clue 2--Kayla is sitting between Annie and Melinda.