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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.
Save the Future Undergraduates
Help STFU! They are the our next generation's future.
stfu by alilfish April 28, 2009
An acronym commonly used in instant messaging or online games (mmo)for Shut the Fuck Up. Used to save time when typing and by n00bs...
"dude, u r really startin to piss me off w/ ur random rambling, STFU n00b!!!
stfu by your mom's face... June 11, 2006
STFU means "Shut The fuck up!!!!!" normally said to people who are very annoying or just won't shut up.. Used also a lot to people who don't know what it means
Your mom: hey come do your homework!!

You: no, mom

Your mom: yes!

You: STFU mom I'll rape you
stfu by The leet gangster November 15, 2007
stfu you supergaymo fucktard
stfu by Todd F. November 30, 2003
DUKE killed STFU last night in NCAA basketball
stfu by Schultz February 3, 2005