Gym Lunk Share definition Flag One who grunts, roars, drop weights, and basically annoys the hell out of everyone else in the gym. Mark is always slamming his weights, roaring like a lion, prancing around in his muscle shirt like Mr. Olympia! What a gym lunk! Gym Lunk by talk2me-JCH2 February 5, 2021 0 0 Get merch Get the Gym Lunk mug. Buy Now — $32.95 See more merch