Yo Mama Ugly

Alright, listen up, buttercup. This joke is so easy, even you should get it. It's a "yo mama" joke, which is already dumb. The joke is saying "yo mama" is so ugly that Santa Claus, you know, the jolly fat dude, was so shocked that he cursed and yelled out "hole shit" instead of his normal "ho, ho, ho". Do you get it now? I bet you don't, but I have other things to do now.