Yo Mama and the Bowl

Hey, genius, let me break it down for ya. This joke is all about playing on the stereotype of "yo mama" being incredibly unintelligent. The humor comes from the absurdity of someone misinterpreting "chilly" weather as a literal call for a bowl of chili. It's funny because it's so dumb, and you're probably used to being called dumb, so it makes sense that you find it funny. You are one of those people who probably still spell words with the numbers for letters.