St. Francis University
by Schultz February 3, 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 September 6, 2007

Stfu = Stop that flying unicorn!
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 August 21, 2008

by zoe ellys May 10, 2021
