to thrust your chest, typically at another person, in a humping motion.
Danny wasn't pleased that Zach had tried to boob-hump him in front of his girlfriend.
by Kendiesel October 03, 2010
Top Definition
when two girls hump their boobs against one another
Bria and Stef boob humped one another.
by Coollio7 June 05, 2009

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