TFO

Abbreviation of GTFO which is slightly more edgy because it has one less letter in it.

Freshman student aid-"Um, excuse me, I'm looking for an Andrew Brown."
Senior student-"TFO!"
Teacher-"Yeah, I don't know anyone by that name"

by PacoJones November 19, 2009

TFC

A common nickname for Toronto FC, a football(soccer) club in MLS.

Did you hear TFC stomped the Impact yesterday?

by dee2 May 16, 2009

TFC

That's Fcking Crazy

I broke up with my girlfirend because all she wanted was sex. TFC

by out of bounds dude March 6, 2010

TFA

Two Factor Authentication. Or Three Factor Authentication. (You see, there's ambiguity in the definition of this TLA)

In most situation, you only need a single factor to authenticate, to prove who you are: "Something you know" - typically a password. But that's not very secure. Therefore, some systems make authentication stronger by requiring more than just one factor. Other factors are "something you are" (such as your fingerprint, or other biometric aspects such as your signature) and "something you have" (such as a key, or a chipcard).

Every ATM I have seen so far employs TFA: In order to get money out of it, you have to prove that you're the legitimate account holder by providing two things: Something you have (your ATM card) and something you know (your PIN).

by Securitoot January 15, 2013

TFR

Title for reference, used on forums.

Title:What are some songs that pump you up?

Subject:TFR

by A Conman December 30, 2010

TFIU

1. The Fuck Is Up
2. The act of frustration towards a situation, which one does not clearly understand.

Guy 1: (Walks in on girlfriend sleeping with best friend)
Guy 1: TFIU!
Guy 2: Umm....

by Matteo Ivan July 28, 2011

TFZ

Acronym for 'the friend zone'; a play on the famous 'thirty mile zone', or TMZ.

I don't know if you realize if, but she has you in TFZ.

by thro November 27, 2012