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.
by Mary Ramsey April 28, 2007
by .katelyn January 03, 2010
by Dani_teh_biggest_band_geek_ever April 28, 2007
like your younger sister (there all buttmunches)
by jrrj August 14, 2009
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!
Second Man: NO! Go buy it yourself!!
First Man: Fine you buttmuncher!
by White Beezy January 25, 2008
Dude, he's a buttmunch!
by Beas T. Lee June 14, 2008