Definition of "WTF"

I've READ them; I know what all the words are. I still say, "WTF, over?" Someone's playing with our heads on this one, but what's all the word stew?

1985, Dick Dunn, “China Cat lyrics - explanations?”, in net.music.gdead (Usenet)

Now, please, explain WTF did you mean by this text?

1994, Marat Fayzullin, “Re: MMM”, in relcom.talk (Usenet)

WTF are you on about? We played some very good football for most of the match, […]

2005, “defect violation”, “Re: WTF!!”, in uk.sport.football.clubs.liverpool (Usenet)

WTF was that about?

2019, 20 November, Carol Midgley, "Prince Andrew is ‘not very quick on his feet’, says the Duchess of York. What of her?" (in The Times newspaper)

There’s a similar “sure but what else?” vibe to Made for Love, HBO Max’s new high-concept half-hour comedy, gently coasting on its WTF setup for longer than it should, to the detriment of the main star Cristin Milioti, trying her very best to secure our attention as it slowly drifts elsewhere.

2021 March 31, Benjamin Lee, “Made for Love review – Black Mirror-esque comedy needs an upgrade”, in The Guardian‎

Likewise the WTF says they are the official Tae Kwon Do organization because […]

1998, The complete Idiot's guide to Taekwondo

The International Olympic Committee (IOC) recognizes WTF at its 83rd […]

2003, Taekwondo: A Step-By-Step Guide to the Korean Art of Self-Defense

The Secretariat of the World Taekwondo Federation (WTF) is located in Seoul, South Korea, in a beautiful edifice […]

2005, Official Taekwondo Training Manual

The WTF secretary general, Hoss Rafaty, told insidethegames that the governing body would look to market itself as World Taekwondo for business and commercial purposes, although there are no current plans to officially change the organisation’s name.

2015 December 26, “WTF? Taekwondo governing body set for rebrand over use of acronym”, in The Guardian‎