Yo ass so fat that you can't see your toes.
When you go to the movies, you take up seven rows.
Alright listen up, buttercup. The joke is about someone's big ol' booty. It's saying their rear end is so massive they can't even see their feet. And when they go to the movies, they're so wide they need seven rows. Basically, it's a playful jab at someone's size. Is your brain smooth yet?