brokeback gum
when a gay man is chewing gum and while hooking up with another man, the gum is passed into his mouth, thus making it brokeback gum
{guys making out}
sean: eww whats this is my mouth?!
billy: oops i forgot to spit out my gum.
sean: eww brokeback gum
sean: eww whats this is my mouth?!
billy: oops i forgot to spit out my gum.
sean: eww brokeback gum