boobs on the belt
a term used to discribe when pants or a skirt is worn higher than the waiste so one's boobs sag over the belt.
"Ew, Cindy look at the old woman. Her high waisted purple leggings are almost at her chin! Can you say boobs on the belt?!"
Boob belt
A belt that a woman wears above her waist and below her breast, which makes her breast more noticeable.
-Damn Jenny's boobs look great
-Duh, she's wearing a boob belt
-Duh, she's wearing a boob belt