Where two bump each others butts.
The two bootie bumped together in College.
by Dem bootie September 16, 2014
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Booty bump is when you take a shard and shove it up your butthole. Then have someone stick their penis in your butt and start bumping
Hey last night me and stephan decided to booty bump and now my bottom is sore and burning.
by Jewlzy May 21, 2021
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