Yo mama is so fat that you should really take care of her because diabetes is a serious problem and she might die.
Yo Mama's Health
Explanation
Explain Bear
Listen up, buttercup! This joke is like saying your mom's so chunky, she's got a date with the Grim Reaper because of diabeetus! You probably don't even know what diabeetus is. Side note, did you know bears can smell food from 20 miles away? Bet you didn't, dummy!