noun

• (slang) A crazy or deranged person; a lunatic.
• (obsolete) An idler, a lout.
• (chiefly Scotland, Ulster) A boy, a lad.
• (chiefly Scotland) A harlot; mistress.
• (chiefly Scotland) A simpleton.
• (Ireland, historical) An English soldier of an expeditionary army in Ireland.
• (traffic engineering) A round area of pavement that protrudes from one side of a road to accommodate turning vehicles with a wide turning circle.
• (US, Canada) Any of various birds, of the order Gaviiformes, of North America and Europe that dive for fish and have a short tail, webbed feet and a yodeling cry.