crum 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.

crum something up

and crumb something up
tv. to mess something up; to louse something up. (See comments at crumb.) Now, don’t crum up this deal.
See also: crum, something, up
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • crum
  • crum up
  • crumb
  • crumb something up
  • involve with
  • involve with (someone or something)
  • involved with
  • arrange for
  • arrange for some time
  • arrange some music for