The act of covering any region with post cum, leaving a thin and shiny film of residue not unlike that of a glazed donut. Most popular practices involve rubbing the penis over the cheek of a female (preferably) until empty and cheek covered. If the female is tan this will further assist in the glazed donut appearance. The pleasurable feeling of recent climax is also similar to the happy sensation resulting from eating large amounts of sugar (glazed donuts); this further bonds the act and term.

just simoning on that shit so that the customers will like it and it gives a nice shiny coating.

glazing the donut means jacking off and having a cumgasm.

The process in which you ejaculate all over a girl's face, and then proceed to punch her in the nose.

When a boy cums all over a girls ass cheeks and rubs it all around her ass

It's a fucking donut with glaze on it you nasty fucks.

When your girlfriend falls asleep or passes out early, and you jerk off next to her, you ejaculate on her ass and by morning your cum dries like a glaze donut on her ass.