look up any word, like dirty sanchez:
 
1.
Sit the fuck down.
Gordron Fryman: I eat baananans.
by sniper112 March 19, 2003
 
2.
SHUT THE FUCK DOWNN.
person A: "something stupid"
person B: wow, stfd.
by ahhguesswho May 02, 2011
 
3.
Sit the Fuck Down

Used when someone just says something obnoxious and you need to put them in their place
Keenan: Aww man, my parents aren't getting me a Mustang for my 16th birthday. This is so unfair.

Damien: Dude, STFD. stop being a douche.
by Dontbeadick May 25, 2011
 
4.
SLOW the fuck down!
You're doing WHAT and texting? STFD!
by MagneticPortal June 19, 2014
 
5.
Shut the front door.
quatre - I just owned you Kebo
Kebo - stfd :*(
by whote April 04, 2004
 
6.
Shut-The-Fuck-Down.
Changed version of STFU which means Shut The Fuck Up.
Joe: Your stupid.
Jim: STFU
Joe: STFD!
by Claude Alsept June 06, 2005
 
7.
Shut the front door ( replacement for stfu- shut the fuck up or shut your mouth)
stfd, don't want him to hear us!
by leeleebooski August 08, 2010