Top definition
N, V, Adj. - Anything or anyone involved in shits of an insidious nature.
Noun - "That kid is the epitome of a punched grumper."
Verb - "Oh shit, dude. I gotta punch a grumper."
Adjective - " That bitch burnt me worse then that punched grumper from KFC last night."
by The Grump Puncher December 03, 2008
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