Top Definition
Fuck your brains out
I'd like to FYBO
#fybo #fuck #brains #sex #shag
by LustLady2 December 13, 2008
7 Words related to FYBO
stands for Fuck Your Brains Out
Tonight, I'm going to fybo.
#fuck #your #brains #out #sexting
by wish i didn't see that text... April 20, 2010
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