>>20268971It's roid jaw.
The way you grow muscles is by stimulating cellular growth, through exercise microtears are created in the muscle tissue, motivating the cells in it to multiply to fix this.
Roids artificially make cells do the same thing, multiply, the problem is that roids disseminate through and act on the entire body while exercise only affects the parts that you train through motion and load-bearing, thus roids will cause unnatural growth in muscles that cannot be naturally grown, like the masseter in the jaw, resulting in this wonky-ass look.
Matt Rife and Zac Efron have it too, people say it's surgery but it's not, it's roid jaw.