Platform Pirate
One who against all medical advice and common sense decides to not just lift weights at the gym, but instead decides to lift ALL of them. Platform pirates are often spotted on the platform with red faces, bulging neck veins and a general sense of pissed-off-ness not just at the impossibility of lifting the weight, but of the world.
Person A: Hey Schmicky! Look over there, that f***er is making away with all our weights like a drunken sailor making off with wenches.
Person B: That's not a sailor, that's a f***ing Platform Pirate! Don't f*** with him, he's on a mission!