fg can me used in a variety of contexts
it can mean hello,goodbye,too much, stop, see ya, ALLOW, or just as a way of acknowledgement.
"HELLO ASHO"
"FG MOG FG!"

"WHAT DO YOU THINK OF MY OUTFIT ASHO?"
"ITS A BIT FG MOG"

"BYE ASHOO"
"FG MOGGGG"
by mogashoforevz January 5, 2009
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"Fucking Get Some", commonly used when doing something above and beyond regular activity. Used commonly in conjunction with military endeavors, such as shooting at the enemy, running fast, climbing, jumping from airplanes etc. Can also be used in social situations like giving speeches, talking to girls, taking tests and paying bills.
Jack went on a 20 mile road march, as he was leaving his buddy exclaimed "FGS".

While fighting the enemy, the Squad Leader yelled "FGS"
by adamfitz53 August 12, 2010
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Hey Tom, Fred, let's go pick up some fg's tonite!
by laohu November 7, 2005
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FGS, Why do we have to do this work?
by xaviial December 5, 2020
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short for facegina. used to describe small waspish voiced potholers with poor co-ordination who have beards that make their faces look like vaginas, very often ginger.
what the hell is that?

that my friend is FG.
by squirrel_nutkin May 9, 2005
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Chris: hey, is she your girlfriend?
Alex: No foo, she's my fg.
by dirty_emo August 28, 2008
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In American football, a field goal attempt. Commonly mistaken for "fag attack".
by glo December 24, 2005
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