When the Bois Locker Room story first broke, I was reminded of the bodybuilding school boys in my local gym. I see them on my regular visits, every couple of months. They know exactly how to use the various machines and do complex exercises to build each body part to discrete perfection.
The boys of that Instagram chatroom must be of similar age and with the same kind of social capital and similar interests. I once tried to eavesdrop on the junior jocks and glean their teenage Ninja secrets. It turns out that one way to make your biceps look bigger is to build the brachialis muscle (the one in upper arms) that lies under it.
When I was their age, I exercised the brachialis to stuff my face. That was because I was fat and liked to eat.

