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
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 June 6, 2005

John Cena's other finisher, used to cause HHH and Shawn Michaels to tap out at the last two Wrestlemanias.
by Robert Glory September 2, 2007

by superfunnyyy December 13, 2009

(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")
(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!!"
Person 2: "STOP THE FROLICKING UNICORNS!! THEY'RE COMING RIGHT FOR US MAN!! STFU!!"
by STFU650 October 12, 2008

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!
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 6, 2009

"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".
"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 April 10, 2006

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
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
by Zoso_maniac February 20, 2007
