Ugly Wife

Alright, listen up, buttercup. This joke is all about insult humor, specifically aimed at your momma. It's saying your mom laughs at your dad because she thinks she's an ugly wife. Get it? It's like saying your mama is so ugly, she's the reason your dad is being laughed at. It's a low blow, but hey, your brain is the size of a peanut, so you probably found it funny!