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English: Brain Free User
Czech: Bezny Franta Uzivatel
a: how can i change skin in ...
b: RTFM
a: what is rtfm?
b: read the fucking manual
a: ???
c: BFU
a: ???
b+c: brain free user
by Vindaloo May 22, 2006
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Bloody fucking user.

Often use to describe someone who uses PC but don't understand it at all.
WTF is that? Some BFU uses IE on my PC.
by noob March 01, 2005
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"Did you see Kayla's new shoes?"
"You mean those BFU's?"
"Yeah, you saw them. She must shop at Gross-meisters!"
by JC17 October 18, 2008
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Bitch fuck you to text some one and without fully writing it out just say B.F.U
example

girl : u gettin on my f'n nerves

Dude : bfu and got to hell
by chindipper215 February 10, 2010
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