someone who is being disagreeable or unlike their usual fun self
someone who elicits a disgusting reaction similar to the way one would react to this bodily secretion.
You are being vaginal discharge right now.
Senario: AT THE CLUB
Friend 1: "I don't want to take that shot. I wanna go home."
Friend 2: "You know what? You are you being a vaginal discharge."
Friend 1: (now vaginal discharge) exits the club.
Friend 2: continues to have a ball a fun at the club without vaginal discharge.