clue in

(redirected from clue up)
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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

clue somebody in

also clue in somebody
to give someone information they need or want I asked David to clue us in on what needed to be done first. He hung the painting to clue in visitors that this was a different kind of place.
See also: clue

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

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