When you are hooking up with someone, and the person you are hooking up with has their tongue in your mouth and moves it around in robotic circles like a washing machine, not passionate or pleasant, at all.

It’s a machine... that washes... tf.

A form of masturbation for women, In which they turn the washing machine on the sit on it. Most likely used during the spin cycle. Which on an uneven load can cause the machine to vibrate more.

It's when a girl is giving a blow job, and she's doing good with her mouth and then she stops and takes her mouth off and the dick is all wet and then the girl starts giving a very violent hand job in which case she is not going north and south she's also going east and west and any chance of the guy cumming is lost because of her sudden hand attack on the guys dick

the thing that washes ur clothes!

When performing the act of the "donkey punch" goes horribly wrong and the woman goes into seizures and shakes on your "member" like a washing machine would.

During anal sex with a woman you pee up her ass and gyrate your hips in a circular motion whilst making a wooshing sound.