This right here be called, manlyness. This separates children from men.
Dudes so big he has to squeeze himself out of the squat rack lol.
But to the OP, Squats, why you ask? Because when you earn pro-status and step on stage with other pros, the first thing they look at is Ham-Glute tie-in and striated glutes, gotta do dem der ATG squats for that!