tfh 

Abbreviation for Tin Foil Hat, also tinfoil hat, a general term for a piece of headgear made from one or more sheets of tin foil, aluminium foil, or other similar material. Some people wear the hats in the belief that they act to shield the brain from such influences as electromagnetic fields, or against mind control and/or mind reading. The concept has become a popular stereotype and term of derision; in Internet culture, the phrase serves as a byword for paranoia.

There were a lot of tfh types at the ufo convention.

tfh by bkdouble October 6, 2006

tfh 

that fucking hurts
totally fucking hilarious
tin foil hat

Man 1: Check out my tfh dude
Man 2: tfh roflmfao
Man 3: Can i c ur tfh up close
Man 1: Ok, but careful IT HAS SHARP CORNERS
Man 3: Ow my eye! tfh!!

tfh by MetalMeerkat July 1, 2009

TFH 

Too fucking hot

Scottsdale resident: "OMG, it is TFH today! When will it ever get below 100 degrees!?!?"

TFH by tfhgirl October 25, 2008

TFH 

to be too fucking high

"you wanna go to that party?"
"i cant, i'm TFH"

TFH by treelover06 July 6, 2009

TFH 

Stands for Totally Fucking Hilarious. Is way better than LOL, LMAO, etc...

Timmy: Did you see Saturday Night Live last week?
Karyn: Yeah! It was so TFH

TFH by bettyboopbopper June 27, 2009

TFH 

Thats Fuking Hilarious

Oh my god jourdan TFH

TFH by difdfidjf March 1, 2008

Tfh 

The fuckin' hell
To portray a state of being baffled like " what the fuck? "

Person 1 : Pineapple on pizza is great
Person 2 : Tfh

Tfh by Augus Rex June 7, 2019