A term used to describe a person's extremely fit and muscular build. Most of the time used in the gay community.
After Derek starting going to that gym down the street, he's started to get fag muscles now
by jimmie Idle February 9, 2009
Get the Fag muscles mug.
A large, loud mouthed douche who believes that he can beat every car ever made in a race. Aside from professional tuners AM fags are annoying and should not be treated with respect due to the nature of the large amounts of shit dissing that spews from what used to be their mouth.
John: Yeah man! I can totally kick your supra's ass in a drag man. You kidding me, that ricer shit probably only has 300bhp.

Timmy: Actually is has 1700bhp you American Muscle fag.
by Beat_Junkie117 October 2, 2010
Get the American Muscle Fag mug.