Top definition
to have sex with (someone) energetically
If Paris Hilton was my girlfriend, I'd fuck her brains out.
by Atheer May 09, 2007
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2
The act of shooting someone in the head with a large caliber round and proceeding to have sex with the bullet hole.
1 "Dude, I'm totally gonna fuck her brains out tonight."

2 "No man that's not cool, that's fucked up."

1 "You mean it will be."
by Jdhdiehdudbdunsd July 23, 2013
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