A powder donut is when a stripper does cocaine off your asshole.

when you're hungover as shit after a spending a night drunk as a skunk

A popular girl who wears a lot of makeup and often dyes her hair. They are often fake and say that they are nice, yet they are too dumb to tell the difference between what is nice and what is mean. Powder donuts often post slutty selfies to Facebook and can't spell worth shit. They also love to scream and overreact.

When you go down on a larger woman who uses cornstarch/baby powder between her folds to keep dry.