klondik cousins
When a girl and guy who are (typically) friends have slept with the same girl or guy.
Kate and Javier are klondik cousins because they both slept with Gina.
Guy 1: "Luis was shocked when found out Liz was his klondik cousin!'"
Guy 2: "Why though? Tino gets around".
Guy 1: "Luis was shocked when found out Liz was his klondik cousin!'"
Guy 2: "Why though? Tino gets around".