Squeaky Door-Hinge

When your having sex with a women on the open side of a door, and when she begins to moan, you spray the inside of her mouth with WD-40 to make her stop. Or slam the door into the back of her head when she is giving head.

Woman 1: Man, the inside of my mouth feels really scratchy this morning.
Woman 2: How come?
Woman 1: My fucking boyfriend wouldn't stop spraying the inside of my mouth with WD-40, calling it the "Squeaky Door-Hinge".