1 definition by Spandas
A gym bro is a male whose entire personality is going to the gym, eating protein and lifting weights. Gym bros are obsessed with their own and others' appearance. They think they are extremely attractive and are often fat phobic and misogynistic. They may be aggressive towards women who are in gyms, which they consider "their" spaces, giving unwanted advice, leering or making unwanted sexual advances / comments to or about women while they exercise. They may become aggressive when challenged. Not all men who go to gyms are gym bros.
by Spandas January 5, 2023