Cinnamon bun

Effectively the same thing as a cinnamon roll. (A character or person who is adorable/innocent/precious/cute and must be protected at all costs, but may or may not be exposed to constant pain that they do not deserve).

The only difference in usage is that cinnamon roll is less common and does not generally imply that the character/person is in constant danger.

When a Guy jizzes on someones ass.

Creating the illusion of Cinammon Buns.

A sweet ass. Can be a male or female.

when a girl with really long hair has her hair done up in a bun, and you blow your load on it it looks like a cinnamon bun.

When ya boi takes a fat shit and you nut into it.
Named after the shape likeness to a cinnamon bun, with white on top of brown.

Very hot latina butt

A Cinnamon Bun is a sexual act for which a group of men will stand in a circle (note: all men must have the same dominant hand). The men will put their non dominant hand in the middle of the circle, all meeting the tips of their fingers in the middle, the will then curl their fingers almost into a fist and it will look like a cinnamon bun. Then they will all masturbate and cum onto the cinnamon bun to add icing.