A perk fag is someone who is only gay for percocets. Gay for pay for his perk habit usually with gay men. They deny they are gay but thoroughly enjoy tapping a gay man's ass for his fix. Similar to a crackhead but worse. Trading sexual favors for drugs.
Derek slept with Amos for percocets. Derek also let Ed blow him for percocets. Derek still claims to not be gay. Perk fag