Fig leafer
Also can be Fig leafing, Fig leafer is a derogatory term for skinny bodybuilders. The origins of the slur may come from the similarities of having a fig leaf over gentitals being visually close to that of bodybuilders wearing small bikinis bottoms. The term is used in Oregon gyms in the Salem area. It is used by powerlifters who want to jokingly put down other lifters for doing cardio and other fancy exercises that promote a lean physique.
Don't let coach Bob catch you doing cardio in those neon spandex leggings or he will forever call you a fig leafer.