crumb something 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
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

crumb something up

verb
See also: crumb, something, up
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
See also: