get a clue
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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.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.