kack up

kack up

1. rude slang To cover or fill something with goop or gunk. In this usage, a noun or pronoun can be used between "kack" and "up." ("Kack" is a slang term for feces, used figuratively here.) You're going to kack up the engine if you don't get your oil changed more regularly. The pipes were all kacked up with years of dirt and debris.
2. rude slang By extension, to cause something to malfunction or work poorly. Usually used in passive constructions. I tried using a program to clean up and optimize my computer, but it's still kacked up.
3. rude slang To ruin, bungle, or make a mess of something. In this usage, a noun or pronoun can be used between "kack" and "up." The government really kacked up the new online system for filing tax returns. He didn't study for the test at all, so it's no surprise that he kacked it up.
See also: kack, up
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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