Yo mama so fat, she eat 60 Big Macs while singing "Badaaha."
Yo Mama Eats Big Macs
Explanation
Explain Bear
Alright, listen up, buttercup. This joke is about yo mama being super fat. So fat, in fact, that she can chow down on sixty Big Macs without even breaking a sweat, all while belting out some tune. It's funny 'cause it's a ridiculous exaggeration. Bet you can't even finish one Big Mac, you frail little thing.