look up any word, like hipster:

1 definition by Trashy Freeman

A sweater a woman ties around her waist to hide her ass while jogging, walking or exercising. While most of these women have good figures from their exercise, they are likely self-conscious of others staring at their ass.
"Wow--check out the tight body on that jogger!"

"Yeah...it's too bad she's wearing an ass sweater."
by Trashy Freeman June 02, 2009