Tic-Tac is a form of sign language bookmakers once used at horse races to indicate to each other what their latest odds on each horse were. Doing this meant no bookie was wildly off the others in terms of pricing each horse.
Tic-Tac is a form of sign language bookmakers once used at horse races to indicate to each other what their latest odds on each horse were. Doing this meant no bookie was wildly off the others in terms of pricing each horse.