tfw is an acronym meaning "the fuck what" (usually followed by a question mark)
it's used to express being confused or amazed by something.
It's also used by Star Wars geeks to imitate the way Yoda would say 'what the fuck'
guy #1: Hey, have you heard about that guy that could bend all the way over until his head is under his ass and then shit on himself?
To fans of Supernatural, "Team Free Will." Refers to the characters Sam and Dean Winchester and Castiel, the main badasses who fought against the destined apocalypse in the show's fifth season. Because screw destiny, humanity can choose what kills 'em and it's not gonna be Satan and dickish angels.
The vernacular arose when Dean sarcastically labeled the three of them in episode 5x13:
Dean: This is it.
Sam: This is what?
Dean: Team Free Will. One ex-blood junkie, one dropout with 6 bucks to his name, and Mr. Comatose over there. Awesome.
Fandom quickly picked up the phrase as shorthand to refer to the three characters as a unit.
Fan 1: that episode was awesome, we got lots of great TFWmoments
Fan 2: yeah and they kicked ass
There's multiple meanings, so I will list them here:
the feel when - Social media Team Free Will - Supernatural
Thanks for watching - YouTube
Typical fucking whore - user-made
Tactical Fighter Wing - Aviation
Travel for work
Time for wine
Toxic flood water
The force within The Forgotten Ways (Alan Hirsch book)