crum up

(redirected from crumb up)

crum up

slang To ruin something. A noun or pronoun can be used between "crum" and "up." You crummed up this report so much that I can't even fix it!
See also: crum, up

crum something up

 and crumb something up
Sl. to mess something up. Who crummed the bird feeder up? Now don't crum up this deal. Who crumbed up my room?
See also: crum, up
References in periodicals archive ?
On a trip to California, on the other hand, glimpsing an angry-looking misfit in a Sacramento diner, Crumb ups the ante, sketching him with blackened face and bulging eyes, and imagining him thinking, "It's not my FAULT I'm UNFIT for normal social life.