Yo mama so fat, when she was telling me her weight, I thought she was telling me her number.
Yo Mama's Weight
Explanation
Explain Bear
Alright listen up, buttercup. This joke is all about your momma being so obese that when she tells her weight, it sounds like she's saying her phone number. Your mother is not fat; she is "gravitationally challenged".
TTTE
Your dads so fat when he walks the ground shakes