1. Microwaving an already toastered
pastry, such as a Toaster Strudel
or Pop Tart
1. Someone who has had sex so many times, they have transcended "tart
2. Any object that has been retarted.
My toaster sucks, Imma have to retart this biYATCH.
Your mom is such a retart.
I'm gonna eat this retart, and like it too!