Obesity jokes
Your mama is so fat that all restaurants say, "Maximum weight 240KG or your mum!"
Yo mama so fat, when she goes to the movies, she sneaks candy in her fat rolls.
Yo mama is so fat, her blood type is Nutella.
Yo mama is so fat, she takes her selfies in panoramic mode.
Yo mama is so unfamiliar with the gym, she calls it James.