by Schultz February 03, 2005
the definition of stfu is Save The Flying Unicorns, used to make someone shut the fuck up by using confusion.
by xXx_anonymous69_xXx August 15, 2016
1) The messaging acronym for "Shut the fuck up."
2) The initials of the fictional organization "Scarf Team Freaks United"
2) The initials of the fictional organization "Scarf Team Freaks United"
by Zizefia August 29, 2007
Jack: You suck.
Jill: fu
Jack: No, really. You're horrible.
Jill: stfu!!!!!!
Jack: =O Where?!
Jill: ?
Jill: fu
Jack: No, really. You're horrible.
Jill: stfu!!!!!!
Jack: =O Where?!
Jill: ?
by checkerz July 24, 2008
Acronym of "Shut The Fuck Up", also known as something you should say to anyone that has an opinion or in case you are tired of people arguing over bullshit. It's also something you should do if you just don't like something. Science approves that shutting the fuck up for who has an opinion is the best thing you can ever do!
by ThatLessHandsomeGuy February 09, 2017