dog
n.— «Coffey said Coble had been reluctant to use “dogs” because he felt the horsemen would not accept them. “Dogs” are barriers—flame-orange traffic cones in this case—to keep the hoofs away from an area of concern.» —“If Problems Surface, Coffey Can Help Smooth Them Out” by Bob Schwarzmann in Renton Seattle Times (Wash.) May 4, 1986. (source: Double-Tongued Dictionary)