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
1 more definition
when two girls hump their boobs against one another
Bria and Stef boob humped one another.
by Coollio7 June 05, 2009