sad fact that people might not have known due to how cute it can seem: luffy has trauma from childhood, he eats so much since he never knows when he'll be able to again. as he stated himself, his grandpa would leave him in the forest to fight to survive and struggle to get food.
@@pawfare then why do other characters like chopper, bonney, ussop etc also eat as much as luffy and also get a round as a fucking ball? get your headcanon out of here it's literally just a character gag and for comedy