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When someone is hopped up from doing cocaine. Often referred to as doing a bump.
Dude1: wow you guys are talking and carrying on like your all bumped up.

Dude2: yeah we scored an 8 ball at the bar and we've been doing bumps all afternoon

Dude1: You two are good at making piss poor decisions
by Cheetoman69er June 04, 2017
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