To defeat one's opponent in terms of breast size. Female competitions can ensue, much in the same vein of men comparing penis size.
John defenestrated his 100% cotton shirt to discover he outbreasted his girlfriend Jenny.
Jenny wore a bra size DD while her friend Jane was an AAA cup. Jane was outbreasted by Jenny and abandoned by her friends.
Jenny wore a bra size DD while her friend Jane was an AAA cup. Jane was outbreasted by Jenny and abandoned by her friends.
by Leeeeee! October 13, 2006
Get the outbreast mug.