the special bond between a group of girls or guys, a romance between 3 or more straight people, who arent actually going out but they are pretty much in love
Person 1: "wow claire, claire, claire and kitty have such a gangmance"
Person 2: "yeah wow i wish i could be part of their gangmance
Person 2: "yeah wow i wish i could be part of their gangmance
by c3+kitty October 23, 2011