Definition
To sexually penetrate (or be penetrated) in a vigorous but pleasurable manner.
In Context
- "The first time we have sex with someone […] does not have to be the go-ahead signal to set up house together. Too many lesbians […] end up at a later date thinking, "I should have just fucked her brains out and walked away.""
- "I fucked her brains out… for eleven seconds."
Also Said As
- hump someone's brains out