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A euphemism for sex. See your local human anatomy book for more detail.
by warren b October 21, 2001
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I bet you that in 20 minutes theyre gonna be Bumping Uglies.

Hey man, saw you leave with that chick, did you Bump Uglies?
by JJwhite October 29, 2006
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to have sex....a colege term, commonly qouted from the film Van Wilder.
"Dude Karen, Me and mitch totaly went to his house to bump uglies last night! It was the best 24 seconds ever!!"
by b!zkit August 11, 2006
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