Definitions for "Wiseguy"
Wiseguy (1987-1990) was a U.S. television program about Vincent "Vinnie" Terranova, an undercover agent of the OCB (Organized Crime Bureau), a fictional division of the FBI. Produced by Stephen J. Cannell, the show differed from previous crime dramas in its use of "story arcs", and in its focusing as much on the sometimes unpleasant consequences of the protagonist's actions, as on the mechanics of the detective work.
a sports bettor that makes a bet and then minutes later the Don Best screen changes the lines dramatically
a successful and well established sports bettor
A smart missile or torpedo, or any hard-kill weapon with sophisticated tracking capabilities.