While going to the toilet, side backwards facing the cistern. When completed, flush the chain and vroom, this gives the impression of being in the mediterranean on a jet ski.

A jack off buddy (from 'cum' /'come', meaning 'semen', and 'companion'); a friend that you get together with for sessions of solo or mutual masturbation
Variant of: cumpanion (from 'companion' & 'cum'); jack off buddy & wank bud & JO buddy
Similar to: fuck buddy

While sitting in a bathtub or shower filled with 2-3 inches of water, let rip a huge fart and you create a. Jet Ski. If your fart is big enough you can create a rooster tail.

When a girl gets wet and the guy eats her out.

To bury one's face in the breasts of a woman with A cups while making a raspberry. Basically, an attempt to motor boat on a woman breasts that aren't at the size necessary to motor boat.

To proform finger actions in the vaginal region.

Similar to the motorboat....it is where a guy and a girl face eather other then she sits down on the ground in front of him. Next, as he stands over her, she proceeds to "motorboat" his boner and balls with her face.