Dough"nut (?), n. A small cake (usually sweetened) fried in a kettle of boiling lard.

• A deep-fried piece of dough or batter, commonly made a toroidal or ellipsoidal shape and mixed with various sweeteners and flavourings, and sometimes filled with jam, custard or cream.
  
• Anything in the shape of torus.
  
• A peel-out or skid-mark in the shape of doughnut or toroid; a 360-degree skid.
  
• (derogatory slang) A fat person.
       Hey doughnut! Get over here.
  
• A spare automoblie tire, usually stored in the trunk, that is smaller than a full sized tire and is only intended for temporary use.