When you pour a forty all over your shorty, whilst she be bouncin' that ass.
Dude, becky got so wasted last night that she let me give her a 40 oz bounce.
by CookieBreath July 30, 2008
when a chick has a huge ass more specifically when the measurements are 40+ inches originally described and used by destructionmiester
man what an ass, yo that chick has the only 40oz bounce
by a$$ master August 23, 2009

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