"So Fucking Gay."Gay as in the sense of the word "lame," not of the homosexual or gaiety variety. Used in response to someone who likes to post a lot of lame acronyms online. Synonymous with stfu.
Guy 1: Knowing the teacher watched you throw a fatty in and didnt say a word TFM
Guy 2: SFG
by fookyuu March 01, 2011
"So fucking Goldsmiths"

Someone who attends Goldsmiths University and acts and dresses in a particularly "cool", arty or "individual" way typical of the univerisity's reputation.
You'd know someone who's SFG once you've seen them.
by roland9000 April 20, 2009
abbreviation for "so fucking good"
-"holy shit, remember that awesome thing?"
-"yeah, sfg."
by jhgbu76rt7v6fkcv May 18, 2008
Sad Fat Girl. The girl amongst a group of hot girls who is fat and sad about it. Often a cock block since she will only become more sad when men hit on her friends.
Check out the group of hot chicks. Oh wait, I see an SFG in there. One of us will have to take one for the team.
by Shaneshaface February 10, 2013
Small Face Guy - A man with an unusually large head but with a proportionately small face
Oh my gosh its SFG !!!
by Golddigger December 10, 2013
acronym for 'so far gone'. Can refer to someone literally or figuratively.
-Man, you see that kid? He is wasted.
--Yeah he's SFG.

*You hear what O'Donnell did during the football game? He's SFG.
**Yeah they'll string him by his panties for that one....
by Crazy4bmws December 11, 2011
Some fucking guy/girl.
Guy A: Who was that on the phone?
Guy B: I don't know, SFG trying to sell me something.
by P-Dizzle Fo Shizzle August 29, 2007

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