Everyone makes mistakes. Like my mom, she made a mistake 13 years ago.
Parental Mistake
Explanation
Explain Bear
Alright, listen up buttercup. This joke is based because it's funny, but you are probably too dumb to get it. The joke is about how the comedian thinks their mom made a mistake by having them 13 years ago. Like, they're saying they're a mistake. HA! You get it now, dummy?