A person who goes to the gym, but does not workout. They walk around slowly watching others workout and think of themselves doing the work. As like when someone watches Karate Kid and then thinks they know karate.
"Dude look at the girl sitting over there."
"Yeah I know, she hasn't done anything at all."
"Total gym potato."
The phenomenon of people in a argument, each trying to dismiss the others opinion by claiming it is the opinion a hipster would have.
Ladies and gentlemen, Hipster Hot Potato.
'You're a hipster' 'No YOU'RE the hipster' 'You're such a hipster you call other people hipsters' 'Only a hipster would say that'.