- A (often gay or bisexual) man obsessed with his own body. His days are spent working out for his next circuit party, taking GHB, and doing steroids. Usually gym bunnies have low IQ's, and high opinions of themselves. Outside of the gym, gym-bunnies congregate in large gay disco's, circuit parties, and bath-houses.
Oh my god, that gym bunny just hooked me up with some great HGH. Hey dude... can you spot my glutes while I do some squats?