TO FUCKING MUNCH ON SOMEONES HUGE ANUS HOLE.
"Man, I wanna munch on someones huge butt anus hole" - Butt Munching
by Andrew and Owen August 17, 2008
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Using the internet excessively to the point of addiction 'I've been butt munching all day'.

Some who engages in excessive butt munching is a butt munch, and they device they use is often a giant butt munching machine (a phone or an ipod is just a butt muncher).
That little butt munch has been butt munching on his giant butt munching machine for 3 days straight.
by Jujulovesdudu May 5, 2013
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Butt Munch-
1. An annoying person that you would like to shut up.
2. A bothersome sibling.
3. A friend who is being a jackass.
Person 1: Hey man, you sure are cool! you have so many friends! I guess that's why everyone thinks you're such a winner

Person 2: Shut up you freaking butt munch.
by David Dugas May 5, 2005
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"butt munch!"

"stop being such a butt munch"
by hmmmm... that person April 7, 2005
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Someone who wears trousers that hang too tightly around the arse. The trousers are usually so tight, that it appears the the persons butt is actually munching on their trousers. It is not a pretty sight.

Related illnesses: Ankle Swingers, which often accompanies Butt Munching, or the type of person who it prone to Butt Munching.
"Oh my god, see that guys trousers!"
"Euw, Butt Munch"
"Those cheeks are going to start talking to us in a moment!"
by lolbeans May 17, 2008
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