STFU

Used to mean Shut the "F" up, also means Step the "F" up.

"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".

by Cable Kenn April 10, 2006

STFU

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

Guy 1: STFU n00b
Guy 2: I got tolded in tha hezay

by Zoso_maniac February 20, 2007

stfugenius

The kind of smart, know it all, that just wont shut up. Often just pretending to know things, though a real stfugenius wont take so long to shut up.

John is such a stfugenius, he just keeps going on about rocket physics, i dont even care anymore!

by Alex Goold June 18, 2007

STFU HEFTER

A member of the STFU family. Can be used to emphatically exclaim to your d0nk or n00b friend that you really want them to shut the fuck up.

"STFU HEFTER, stop being a d0nk."

"OMG AYFKM?" STFU HEFTER!"

by Mr. Pancake December 25, 2008

STFUASD

Shut The Fuck Up And Sit Down! A new text message shorthand, for when STFU (Shut The Fuck Up) isn't enough, and the person is being really persistent

"Guys, this isn't what we should be doing."
"Enough, we don't want to hear it any more."
"But, really, I don't think this is a good idea"
"Oh, STFUASD, jerk!"

by Demandreddarklight August 16, 2009

Stfu, Gtfo, Poop face

Words created by Annika J since 1997.

Stfu- shut the f*ck up.
gtfo- get the f*uck off or shorter terms get outta hurr.
Poop face- offensive word meant to hurt feelings of others but in a joking way.

"Stfu, Gtfo, Poop face"

Stfu don't talk to me.

Gtfo i hate you.

You Poop face.

by AnnikaJ. September 9, 2011

stfu

abbreviation for "shut the fuck up" used when your mad at someone, their annoying, or they're talking shit

guy 1: wow your so stupid and blah blah blah
guy 2: omg just stfu

by jdcblajdbaiduch January 18, 2015