noun.
A deep-fried piece of dough or batter, commonly made in a toroidal or ellipsoidal shape, and mixed with various sweeteners and flavors, sometimes filled with jelly, custard or cream.
noun.
Anything in the shape of a torus
noun.
a peel-out or skid-mark in the shape of donut; a 360-degree skid.
noun.
A spare tire, smaller than a full sized tire and is only intended for temporary use.
noun.
A toroidal cushion typically used by hemorrhoid patients.