Southern Tenant Farmers Union. Formed in response to FDR's agricultural policies during the Great Depression.
We learned about the STFU today in history class.
by Richard Swett June 13, 2010
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."
by jill04 March 21, 2012
start the fun unicorns
dude, just stfu.
by sarahpenaliesss February 10, 2010
1.Acronym for SHUT THE F*** UP
2.For same thing for u
1.Joe:Hahaha you suck!
Jack:STFU
Joe:No u

2.Remma:Your lookin' hot
Jake:stfu too
by spike09 November 14, 2009
Stuff That's Fun Usually.
Canned goods and hitting little kids is STFU.
by fruitsmakemehungry. August 21, 2009
An acronym for Shut The Fuck Up. The illiterate mass that uses this seems to conveniently fail to realize that acronyms do not include a "T" for the article "the".
"If you ain't got nothing nice to say, then STFU."

"That's a double-negative."

"Huh, why do you speak in gibberish?"
by Killa Clownz November 05, 2008
Save the flying unicorns!
One day I went to school and some people were protesting with signs that said "STFU." I asked them if they knew what it meant and they said it meant save the flying unicorns.
by Spontaneousmuffinlover April 24, 2011

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