bull ring
n.— «Most drivers also despise Martinsville the first time they race there. Short tracks are often referred to as “bull rings.” Martinsville is one of the few that really fits the image.» —“Martinsville takes guts, columnist Dutton says” by Monte Dutton Gaston Gazette (Gastonia, North Carolina) Oct. 16, 2008. (source: Double-Tongued Dictionary)