Stupid F-ing Drummer. The guy in your band that has all sorts of cold, heavy silver crap in his trunk that you must inevitably carry through doorways that are too small. Also tends to beat the $Hi7 out of stuff with two sticks very loudly. Often thinks he can sing and/or play guitar too.
Yo, during the set break, SFD was reading press packets so hard that his face melted off! Need an acoustic set on the quick!
by Joburocks November 18, 2006
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Social Filter Deficiency

A syndrome in which the said subject has trouble deciphering which thoughts to express aloud, and which to keep silent.

Often the source of embarrassment of subject's companions.
One:
Kyle - Chad has SFD.
Bailey - You reckon so?
Kyle - Yes, he just asked me if I would graffiti the school's walls with him while we were eating thanksgiving dinner at my grandma's house!
Bailey - Yeah... he does have difficulty gauging what to and not to say.

Two:
Chad - (rather loudly) GUYS I'M SO DRUNK!!!
Krystan - Chad! Stop being to SFD! I'm on the phone with my mother!!

Three:
Chad - I really need to take a shit.
Teacher - ... SFD...
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Sexual Frustration Depression

The mix of sexual frustration and being depressed about not getting it that night
I have a bad case of SFD, I wish I could go out but I have date night with netflix and my dildo
by spunkyy January 26, 2014
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SFD is everything and nothing. You can use SFD in any manner of speech, for any reason, and at any time.
Arch - Hey, how was the weather down there?
Jade - Well today there was a 40% chance of SFD.
Arch - Nice, better than up here! No a SFD in sight!
Jade - Well ain't that an SFD if I ever did hear one.
by Solaris Inviux July 11, 2008
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'James asked me to the cinema on Valentine's Day but his friend is coming too!'
'What the fuck!'
'I know, I'm SFD'
by pseudoynmmmmm February 10, 2016
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Standing for "Shit Fuck Damnit". An abbreviated way of expressing anger whilst typing. The non interrogative form of "WTF" because SFD does not ask a question, it simply states anger.

As almost anything these days, it is mainly used on social networking sites to be a SFW (Safe For Work) typography.
Arthur: Slept through my alarm again, now ima prolly get fired from work. SFD

KC: Told you you shoulda wired your alarm into your stereo... Does this mean your going to be free on Friday?
by ihadabadname August 17, 2010
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Janice is such a SFD. I mean she's cramming those things in her mouth like her life depends on it!
by JaCrispy423 April 22, 2016
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