gainer hater

A person who sneers at the gym and those who attend.

Man 1: I've just been for a big gym session so I need to eat some protein.
Man 2: *rolls eyes* you're so sad.
Man 1: don't be a gainer hater

Gainer hater

A person who sneers at the gym and those who attend it.

Man 1: I've just been for a massive gym session so I need some protein.
Man 2: *rolls eyes* you are so sad.
Man 1: you're such a gainer hater