wtf 

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?

wtf by chalupamonk March 3, 2003

WTF 

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.

WTF by t3h n00bz 7a!k l!k3 t3his July 27, 2006

Wtf 

Of course there is only one known definition of the phrase Wtf and that, of course is Wilbur, that frigg-nugget.

Ellie: OMG WTF!

Jessica: Who’s Wilbur?

Wtf by I.make.weird.definitions January 23, 2019

WTF ?!?!? 

something you are likely to say after reading a few definitions in urban dictionary.

Nigerian Slam Dance
Bathing multiple hot girls with your sperm, while playing the bongos and speaking in toungues.

WTF ?!?!?

WTF ?!?!? by Young Reezie January 31, 2008

WTF 

1. What the fuck.
2. World Tae Kwon Do Federation

Guy #1: Dude! I'm going to the WTF world tournament!
Guy #2: Uhh... what do you do in a "What the Fuck" tournament?

WTF by george April 20, 2005

WTF (?) (!)

an acronym for "what the fuck", commonly used when one hears something that does not make any sense whatsoever or when one hears something that is so weird/random/uncommon that they feel they must say something equally random.

i say WTF to most things you say because they are so stupid.

WTF (?) (!) by invader abc September 8, 2005

WTF?

Stands for What The Fuck.

sexmister234: dude, i fucked up your mom last night! She makes my kinky!
WTFman3342: WTF?

WTF? by USSR December 11, 2003