look up any word, like ratchet:
 
18.
fg
An abbreviation for the popular show, Family Guy, used mainly on internet forums.
Did you see last night's episode of FG? I missed it.
by Laylor April 25, 2005
 
1.
FG
Fucking Genius. A title awarded to those whom are intelligent and wish to place emphasis on their natural aptitude in matters of the mind.
Kumar: Dunahee is a FG, did you hear how well he did on his test?

Felipe: Yes, and I heard he didn't even study. I wish I was a FG.
by Dresmeister April 09, 2010
 
2.
FG
Fangirl, usually a young girl obsessed with boybands.
Most notable in the fangirls of KPOP groups
A: Jessica is so obsessed with EXO and cute Korean stars
B: What an FG
by cheese374 April 16, 2014
 
3.
Fg
Fg literally means "Friendly girl", it can be used in a variety of situations where one may want to talk about a girl but without actually referring to her directly, so the term fg may be used. Fg also has a double meaning now this cant be defined for it is for you to discover... the antonym (opposite) of an fg is called a "ufg" which means un-friendly girl (this has a double meaning as well)
Example 1

Guy 1: Woah! That girl over there is an fg!

Guy 2: Yeah man! Can't lie!

or

Guy 1: Do you think that girl is an fg?

Guy 2: Well sorta... Could be better

Example 2

Guy 1: Awww wtf?! That girl over there is a ufg!

Guy 2: I know man, she disgusts me!

or

Guy 1: Is that girl over there an fg?

Guy 2: Nah! Shes more like a ufg.
by AceW3RM November 15, 2011
 
4.
Fat Girl Syndrome (F.G.S) is a medically diagnosed condition founded by KC JOHNSON. This condition is common in overweight women and gay men, and causes them to sleep with whoever will take them. It also causes uncontrollable bouts of self pitty, depression and lack of self worth. F.G.S is also commonly mistaken for S.G.S (Slutty Girl Syndrome)
KC: Gurrl, I can't Believe you slept with that old dude, You must have F.G.S

Stepho: I Know, i can't help it!
by Dr. John-Stone October 18, 2011
 
5.
Fg
Fat girl, could say field goal, foxy grand ma, ect. Used by guys to keep the fattys from knowing what they are talking about.
Kyle: Dude check out them Fgs, Ronnie, they comming for you.
Ronnie: Shit man, i hate them fruity gnomes.
by Seagraves February 15, 2007
 
6.
f.g
abbreviation for fat gut
- emily is such a f.g
by cords April 05, 2005
 
7.
FG
a faker ganger; not a real chollo or gangbanger. he pretends like he's a hardass when he isn't
FG- I'll feed him to my dogs I got from Satan's garage sale.

*shows dogs*

Man- Those are chihuahuas! You're just an FG!
by BOTDFbitchh November 21, 2010