a dogs hind leg
A dog's hind leg is a fancy way to call a man who likes other men, usually the kind who doesn’t know how to keep their mouth shut.
My uncle says my cousin is a dog's hind leg, and he’s not even wrong.
At the gym, my friend called the guy flexing a dog's hind leg, and now we laugh about it every day.
My mom told my dad he was a dog's hind leg when he came out to her.