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1 definition by White Beezy

 
1.
Someone who is acting like a jerk, dick, meanie, or asshole. But by calling them a buttmuncher you are saying it in a nicer way.
First Man: Will you buy me a soda, please?
Second Man: NO! Go buy it yourself!!
First Man: Fine you buttmuncher!
by White Beezy January 25, 2008