A way of writing out the ever-so-popular Internet acronym "WTF" which stands for "What The Fuck". It is usually used to be funny, to exaggerate, or be very sarcastic. This method can also be used for any other acronym:

LOL - ell oh ell
ROFL - ARE OH EFF ELL
OMG - oh em gee

It has also been known that WTF has been pronounced like "wuh-tff" when people try say it like it's spelled, as they would say "Lawl" or "Rawffle" in lieu of LOL or ROFL.
Let's say Timmy and Johnny are playing Counter-Strike:

Timmy: What the crap was that? OMGHI2U81607861048 is using headshot scripts! No fair! A headshot through the wall with an AWP is impossible!

Johnny: OH EM GEE DUBBA YEW TEE EFF??!! Ohnoes! We better report him to the admin so he gets b4nnz0r3d! Timmy, STFU and play.

Timmy: Ohnoes! I got pwnz0r3d!
by Paddy V June 11, 2005
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The pronounciation of the acronym wtf. Usually spoken by the vets of online gaming who've also seen the End of Ze World video.
by Hadraniel January 11, 2005
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The elogated form of wtf, without actually saying "what the fuck?"
by Fifi December 23, 2004
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pronunciation of the internet slang "wtf" meaning "what the fuck"
double-you-tee-eff just happened?!?
by Mr. S-N-V-G-M June 18, 2004
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The written out pronunciation of the acronym "STFU", which stands for "Shut the fuck up".
wE dun likes what u says SO ess tee eff you hoe
by bklethal April 22, 2009
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Taa Taa For Now.

It means goodbye, seeya later.

Popularised by Tigger from Winnie the Pooh
Tigger: TTFN
Pooh: Goodbye, Tigger.
by Williamo June 26, 2005
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