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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
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Jul 31 Word of the Day
(noun) A person who sits on the front porch and intimidates, says negative things, or otherwise makes things unpleasant for those nearby.
The boys walked past the house of old man Thompson, the neighborhood porch dick, who always assumed they were up to no good.
by bigweaseldaddy March 08, 2015
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FG stands for fuckgirl. It's a shorter form and sucres way of saying it. A fuckgirl is a girl who acts like a fuckboy. She strings them along and uses other guys when shes already maybe dating someone else. She loves getting attention from many guys. Its the type of girl who thinks shes hot and the shit and attempts to show it without trying but it is obvious that she is. She's particularly easy and will go for any guy that gets thrown at her.
Ryan: bro, she's texting over 10 guys..
Zack: she's definetly a FG..
by Rushhour10 September 16, 2015
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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
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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
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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!


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!


Guy 1: Is that girl over there an fg?

Guy 2: Nah! Shes more like a ufg.
by AceW3RM November 15, 2011
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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
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