one who loves to munch in and around the asshole from time to time.
Alex and Jake were the number one buttmunchers the night because there buttholes became soggy
by Gunther69 February 19, 2010
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Seemingly derogatory term but often used with affection. In the classic sitcom Malcolm in the Middle, the brothers call each other buttmunch but with a smile and a pat on the back. The word can also be used as a sexually suggestive term, using it on someone you would actually like to munch on your butt.
1. Reese to Malcolm: Way to go buttmunch! I'm proud of you!
2. Reese to Malcolm (pulling down his pants): Hey buttmunch, dive in!
by zekebones March 17, 2018
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a term made poular by beavis and butthead, commonly referring to beavis.
beavis, shut up you buttmunch!
by daniel knight July 7, 2003
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n. Someone who is a source of irritation, thus becoming the target of another's animosity.
Syn.: jerk, wanker, bastard, fucker, creep, buttmonkey, asshole, shithead
"Give the kid back his ball, you buttmunch!"

"All you do is make fun of me. You're such a buttmunch."
by Tatari June 10, 2003
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N. An annoying person who you can't stand. Someone you can't find a word for.
"Dude, stop being a Buttmunch!!"

"Don't talk to me! You're such a Buttmunch"
by IhYfF July 2, 2009
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Buttmunch is a common insult used to describe someone with a disagreeable personality. Character traits that can define a person worthy of being called a buttmunch include but are not limited to: annoying, mean, dumb, sarcastic, etc.
No ones knows were the term was originally coined before it was used in Beavis and Butthead, which brought the word to mass popularity.
Haley: Blah Blah *annoying* blah blah blah

Daniel: Haley! Stop being such a buttmunch!!!!
by Sakari October 30, 2012
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An annoying person, particularly a small one you can't call a worse name
Your little sis is a buttmunch
by Az December 15, 2002
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