Bob: Look, stfu!
Steve: What's stfu?
Bob: It means seventeen thousand free unicorns.
Steve: Oh, okay.
by therandomperson January 30, 2017
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the acronym of what you say to someone who spells this out in a real life conversation and other overused acronyms like wtf rather than saying the real thing

fag: stfu (spells out stfu) I only kiss that other guy cause uh..it's my religion so wtf (spells out wtf) you talking about I'm not gay.

me: No YOU shut the fuck up you don't even know proper english AND you kissed a guy, fag.
by tony_chen February 26, 2007
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n00b: i drank like 3 beers yesterday
1337 one: Wow, and that went well?
n00b: no of course not, i puked all over the place
1337 one: STFU
by T|L|K April 28, 2004
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the acronym for what you say to someone (shut the fuck up) who spells internet acronyms out loud in a real life conversation as opposed to saying the actual words.
dude1: stfu (spells out stfu) I only kiss that other guy cause uh..it's my religion so wtf (spells out wtf) you talking about I'm definitely not gay.

dude2: dude YOU shut the fuck up you cant even speak proper english and that was the dumbest bullshit I've heard since I saw George Bush on Global National.
by tony chen March 28, 2007
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In NGC's book, stfu is when he drops something, or if he won, or both.
|09:39| »» +Neo_Genocide_City for the final time
|09:40| »» +Neo_Genocide_City STFU
by Gunner112k August 22, 2003
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1.) Save The Freaking Unicorns
2.) Say, Thanks For Understanding
3.) Short Term Follow Up
4.) Special Task Force Union
5.) Stop Talking Find Username
6.) Slippery Teflon From Utah
7.) Stinky Telnet Fell Under
8.) Special Transitory Food Units
9.) Stealing Turkeys From Uncle
10.) Superior Tactical Fragging Unit
11.) Silence That Followed Us
12.) South Texas Farming University
13.) Southern Tenant Farmers Union
14.) Scrawny Two Faced Underling
15.) Samurai Training Finished Unsuccessfully
16.) Show Them Fury Unleashed

Or the most common definition:
17.) Shut The Fuck Up
The common response to the previous 16 definitions.
STOP GIVING ME MANY DEFINITIONS FOR STFU!! STFU!!
by DarkDragon59 December 10, 2011
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