Santa's Shock

Alright, listen up, smarty-pants. This joke is all about yo mama being super fat, like so huge that even Santa, who's used to tight squeezes, is shocked when he sees her. It's funny 'cause it exaggerates how fat she is in a ridiculous way. It's like saying you're not just bad at something, you're so bad that professionals are impressed. You get it now, or do I need to draw you a picture?