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1.
used in a threatening context, to warn a person who is being increasingly annoying that they are about to get smacked/punched/kicked in the face/stomach/groin unless they refrain from annoying you further
if you do not stop pissing me off i am going to karp you with a rusty spatula.
by meeza99 July 12, 2006
 
2.
To pull a "karp," is to do something completely unexpected and lucky in order to gain an advantage during an athletic event.

also referred to as "pulling something out of your ass."

The term was named after a Los Angeles wrestler, Karp, who would always win his matches through half-assed made-up moves at the last second. The term was subsequently spread by his team.
"yea, he's losing now. But just wait, he's gonna karp that fool.
by Phantom_Pain September 08, 2008