Married guys who hit on single women without the intention of closing the deal. They are in the game to prove they can win. Once they catch it, they throw it back. Can also apply to married women.
The act of a married or attached guy flirting with a girl to see if they still have "it." Also known as catch and release. SportFishing does not end up with a hook up, if it does see "adultery"
Friend 1: Bob is hitting on that chick over there, maybe I should go tell her he's married.
Friend 2. No need man, he's just sport fishing.