Originally from "7 Reasons Pokemon Is Secretly Nightmare Fuel" by Derek James.
I’m sure that you have noticed the long red lines on Machoke’s biceps and forearms, but do you know what those lines are? Machoke is quite literally bursting with muscles, and it is heavily implied that the red lines are Machoke’s muscles, underneath areas where its skin has stretched apart. Think about that. Why is it smiling? Perhaps Machoke isn’t actually smiling, but constantly grimacing in agony.
Also, the Pokédex sheds light on its special garments, saying that “Machoke’s boundless power is very dangerous, so it wears a belt that suppresses its energy.” This raises another horrifying question: what happens to wild Machokes? The belt these Pokémon wear seems to be artificial, presumably crafted by humans, so what happens to Machokes born in the wild? If they didn’t have the belt, would they eventually explode into a mass of torn flesh and bulging muscle?