Acronym for shut the fuck up. Commonly used by bad-ass kids on sites that filter inappropriate language, such as Club Penguin, Pandanda, Runescape and Stardoll.
Also incorporated by lazy typers who can't be bothered to find the hut he uck p on the keyboard.
Kid: "I like Highschool Musical :)"
Bad-ass kid: "Dude, stfu. No-one gives."
po jill04 Март 21, 2012
Shave the furious Unicorn
Bill: STFU!

Jill: WHAT?!

Bill: *points to an angry unicorn* Shave it. It's furious
po MusicEmo Јун 14, 2010
One would say it while losing an argument or after being insulted; usually used by french speaking canadians.

ESTI FUCK YOU
Person 1: You're lame

Person 2: STFU
po oqk Јануар 12, 2011
The esteemed school known as St. Francis University. Named after the valiant Catholic priest Saint Arthur Francis, STFU is dedicated to providing their students a quality, yet spiritual education. In addition to the superb education offered at STFU, they are also known for their outstanding basketball team. Their mascot is the fabled Unicorn, as students can be seen all around the campus holding a hand to their forehead and pronouncing "UNICORNS!!!!" to the rest of the world.
1. "S--T--F--U--S-T-F-U-UNICORNS FIGHT!!!"
2. BAM!!! I just Unicorn stabbed you with my horn.
3. "Oh yeah I remember STFU, they had a good basketball team." - Mr. OL
po skyguy86 Март 23, 2009
the definition of stfu is Save The Flying Unicorns, used to make someone shut the fuck up by using confusion.
can you please (go) stfu/ save the flying unicorns (for me) ?
via giphy
po xXx_anonymous69_xXx Август 15, 2016
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