Gainz Goonz
The guys and girls at the gym who are always working out so hard, they probably think they're going to live forever. They're like the human version of a superhero, but with more sweat and fewer capes.
'The Gainz Goonz were doing deadlifts while I was still trying to find the dumbbells.'
'I tried to keep up with the Gainz Goonz. I failed. I now have a new nickname: 'The Weakling.''
'My friend joined the Gainz Goonz. Now he's got a six-pack and a new attitude.'