Top Definition
To be Fucked very hard! usually if your brains are being banged out, you have about 2-3 orgasms.
a girl: OMG Josh said he's gonna bang my brains out!!
the girls friend: are you going to let him?
the girl: hell yeah!! lol
by b-r-i-a 54 August 31, 2007
5 Words related to bang my brains out

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