STFU

1. Shut The Fuck Up

2. Stuff You

3. Still Fuck You - used after someone says FU
1.
n00b: hello!
Pro: STFU I don't talk to n00bs

2.
n00b: hello!
Pro: STFU

3.
n00b: hello!
Pro: FU
n00b: still hello!
Pro: STFU
by a la dude May 31, 2005
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STFU

John Cena's other finisher, used to cause HHH and Shawn Michaels to tap out at the last two Wrestlemanias.
The STFU is one of the weakest-looking submission maneuvers in wrestling.
by Robert Glory August 26, 2007
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STFU

bob: jfhaklsfhjaklfjakjklbajkvjakfjalksfjklas/.......

me: stfu. :)

bob:
by superfunnyyy December 14, 2009
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STFU

(v) An acronym for the phrase "Stop The Frolicking Unicorns!", a phrase used by Shroomers, Acid-Users, and other hippies from H$A, S.F, used to tell people to stop the unicorns they see frolicking down the street after they become hallucinated due to the Acid and Shrooms and start to see frolicking unicorns.

(See "Harold and Kumar Escape from Guantanamo Bay")
Person 1: "Tom, whats wrong? You look freaked out man..."

Person 2: "STOP THE FROLICKING UNICORNS!! THEY'RE COMING RIGHT FOR US MAN!! STFU!!"
by STFU650 August 17, 2008
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STFU

The opposite of SNAFU. Situation Terrific Feelin' Upbeat! First used by mid-western housewives at social gatherings such as picnics, little-league games and bingo night. The term is gradually spreading across the US and makes for confusing if not interesting web chat.
LUANN: How's the bake sale goin' Judy?
JUDY: STFU Luann! We've already met our sales goal, have run out of gingersnaps, and are about to sell our last box of cupcakes!
by superdoodie May 06, 2009
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STFU

Used to mean Shut the "F" up, also means Step the "F" up.
"If you think you are man enough, then STFU and prove it".(Reference to the phrase, "Cowboy up"). Of course both phrases are commonly used together.
"If you think you are man enough, then STFU (Step The "F" Up) and prove it, otherwise STFU (Shut The "F" Up) and sit your ass down".
by Cable Kenn February 24, 2006
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STFU

Shut the fuck up
to tell someone to be wuiet using profanity.
Mainly abbreviated in AIM, other chatting, and nerdy-ass, MMORPG computer games such as WoW or EverQuest
Guy 1: STFU n00b
Guy 2: I got tolded in tha hezay
by Zoso_maniac February 18, 2007
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