FG
To "feel good" usually from natural happiness due to the dopamine in your brain. At this moment of feel good nothing can make you unhappy. Sometimes also used as "feel great".

FFG-"feel fucking good"
Can't get any better than this.
"Dude, your girl is fucking another guy in the next room"
"No worries, I'm FG."
by Schack Attack June 17, 2008
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
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
fg
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 05, 2009
fg
abbreviation used for friend girl
Chris: hey, is she your girlfriend?
Alex: No foo, she's my fg.
by dirty_emo August 27, 2008
fg
the "fucking guy"
used to describe one who is 'the man';
Joe Nesto (jniddy)
& Flip
by Kings Daughter November 21, 2004
FG
Abbreviation of the word "Fangirl".
"Who the hell am I going to FG to when The Wanted is on Jay Leno?"

"Oh my god, I am such a FG for Nathan Sykes!"
by Honorary FG. March 20, 2012
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