Post-date postmate
When a couple goes on a date and bring left overs (or charity food from another -cheaper- restaurant) to a friend to make them feel better about not being able to tag along for the date.
Single: aye wanna hang?
Taken friend: sorry I got a date tonight, but I’ll bring you post-date postmate
Taken friend: sorry I got a date tonight, but I’ll bring you post-date postmate