(verb)
1. to tell (someone) to shut the f**k up.
Person 1: STFU!
Person 2: Don’t you dare STF me, idiot! STF YOU!!!
adjective meaning "straight to fridge"; used to describe that something is so good, if it was a child's drawing, it would go straight to the fridge.
Bob: Did you see that triple back-flip Gary did today?
Bill: Yeah. It was awesome.
Bob: Yeah. Totally STF.
A hallowed secret place for dreams, devilry and dickslapping.
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"Those who know STF, ARE STF."
When fellacio is performed to fruition instead of a warm up for sex.
Suck till finished
"Jordyn wanted to make her bf happy so she gave him an stf."
"I was having a bad day, so she gave me an stf."
Swear To Fuck; to be used in place of swear to god - for people who do not believe in god; but believe in fucks.
"You better man up or I stf"
Stands for Shit Thats Funny. Replaces the older, tired phrase, lol.
Schaefnaa18: dude i kicked this kid in the balls today. he was crying and shit
Willmoney420: STF man
Stuff (or Shit) that folds - A phrase used by marketing professionals to describe volumes of hard copy marketing collateral which is seen as a necessity by most sales people.
The sales toolkit included the usual corporate sales presentation and STF.