A extra bone on the human body that only male's have. It has the ability of appearing and disappearing whenever the male is exited. the "boner"
sometimes doesn't appear when it's
supposed to, for example, it always appears in class
presentation and never when you're actually going to have sex.
Male 1: dude,
i had a boner yesterday on the middle of a class
presentation, everyone was laughing about it...
Male 2: aw man, i was
hitting it up real nice with this girl but it decided to disappear on the middle of the action man.