Dora Can't Explore

Your mom is so fat that Dora couldn't explore her.

Mom
Dora
Family
Explorer
Cartoon character
Body size

Explanation

Explain Bear

Okay, so listen up, you dummy. The joke is all about your momma being super fat. Like, so fat that even Dora the Explorer, who's all about finding new places, can't explore all of your momma! Get it? It's funny because it's an exaggeration, and it's at your momma's expense.