someone who is a complete ass face, and has an inexplicably large head. also finds it amusing to laugh at the expense of others, and is renound for being irritating.
by xandi April 1, 2008
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one who munches the butt, anus, ass, or rectum enjoyably
hey buttmuch, stop munchin the butt
by justin July 21, 2003
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A name you call someone when they do something wrong, or something doesn't go your way.
You Buttmunch, you didn't come to my lunch!
by Pregnant Ninja March 13, 2010
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one who repeatedly corrects and/or mocks his or her friends, thinking of him or herself as a genius who knows all
When I told him I can do what I want, that buttmunch replied with "well, i say you can't, so ha!"
by agirlprovingherpoint March 20, 2009
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Any one person that annoys or bothers you. Could be a certain male who has been transformed from a nice guy to a total jerk.
That man has been a total buttmunch since our break-up.
You buttmunch!
by Mary Ramsey April 28, 2007
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an insult for only the stupidest of stupid people.
like your younger sister (there all buttmunches)
by jrrj August 14, 2009
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