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Generally stands for 'What the fuck'. Most people use a question mark afterwards to get the point through. Rather than using the same term for the other 'w's, who, when, where, and why, it makes more sense to actually state the word and follow it with 'tf'

Capitalization doesn't really matter.
This term can also be likened to 'What the shit?' which is more comical and has a tantamount meaning.
WTF?
WhoTH?
WhenTF?

WTS?
by chalupamonk March 03, 2003
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Nov 27 Word of the Day
A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.
That fucking smooth brain put his shirt on backwards again...

That smooth brain is dumber than a pile of shit.
by Tip Tank May 14, 2011
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2
The World Taekwondo Federation.
WTF, holds many competitions throughout the world.
WTF, as far as i know, remain blissfully unaware of the other meaning of WTF. Or maybe they just don't feel like changing.
by t3h n00bz 7a!k l!k3 t3his July 26, 2006
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3
Denotes: What the Fuck!
After a heavy night of drinking John exclaims, W.T.F., I can't find my wallet!
by Kevin2005 September 28, 2005
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4
Guy #1: Dude! I'm going to the WTF world tournament!
Guy #2: Uhh... what do you do in a "What the Fuck" tournament?
by george April 20, 2005
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5
sexmister234: dude, i fucked up your mom last night! She makes my kinky!
WTFman3342: WTF?
by USSR December 11, 2003
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