A flame that is targetting the sexual orientation (homosexuality) of an opponent. Usually used by lame flamers who have no other material to use. Generally considered lame because flames of this type are often repetitive and lame.
The word fag-lame is a play on the words, fag, flame and lame. Also similar to fat-lame.
Lame_Dogg: You're so gay, you take it IDB every night!
King_Flame: O rly? Is that all you got is some dumb fag-lame?