stf

Acronym.
Shut The Fuck

To shut the fuck.

<argv0> hey marlon i have the best story 4 u !
<marlon> stf.

by Jinx June 12, 2004

stfs

Suck The Friken Sack !

Person 1) "Hey, you suck"

Person 2) " Bro, STFS"

by sofunnydefinitions April 14, 2010

StF

Shit The Fuck

To be really pissed off/ angry / annoyed at sumthing

Mitch: "StF"
Bill: "What?"
Mitch: "I Just kicked my toe on that Mutha F**KER step :@ !! "

by OC_73 July 12, 2006

stf

It means "Shut the fuck up"

"blarblarblarblarblarblarblarblar..."
"STF, nigga!"

by Inpyo April 25, 2006

STF up!

Polite manner of saying, “shut the fuck up!” without the vulgarity.

As her small children looked on, she yelled: “STF up! you little four-legged yapping machine, go in the house, go to beddy!”

by Dr Bunnygirl August 8, 2019

Sexually Transmitted Flu (STF)

When a person catches a cold or flu virus after a sexual encounter with another person infected with the virus.

Tim: How come you're coughing so much?
Andy: Caught a STF from that chick last night.

Sexually Transmitted Flu (STF)!

by lkitten February 27, 2010

Sandy Turd Flex (STF)

When you're taking a dump and your butt flexes forcing the poop to retract into your butthole causing the sensation of sandpaper going up your butt.

"Man I hate it when I have a sandy turd flex (STF) in the bathroom"

by Matt Stazjic October 3, 2016