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to leave in a hurry.
"Crap, there's my ex. I'm going to have to crunch out before this gets nasty."
by mic dundee June 23, 2007
To creep out on someone, derived from the infamous sketchy rave character Captain Crunch
Ew, that creep with the one-eyed stare is starting to crunch out on all the young girls, trying to give them all free hugs.
by 12er McLush April 12, 2011