An all out full contact game of mini basketball commonly played in a small hallway or room with a bunch of bros. The objective is to plow your way to the basket in an attempt to "slam it home". There are no rules and games are played to 5. To become a preeminent player you must play with heart and a hankering for winning.
The game of throwing small objects of any kind down nearby women's cleavage. The more cleavage there is the more fun it is to play. It's like basketball, except with titties.
Dude 1:Hey manwant to play some boobskeball.
Dude 2: Sure, alright that small rack is 2 points and that huge pair over there is one.