When someone who has consumed too much alcohol passes out and you ride their unconscious body down the nearest set of stairs. Incredibly fun unless you're the one unconscious.
Elliott got really drunk at the party last night and passed out, so we went jet-skiing with him.
to jet ski your missus
your missus assumes doggy position, taking hold of her wrists,slid down over her ass,pressing your puckered lips firmly against her pussy beging to blow a good firm rassberry whilst pulling her onto your face . now your jetskiing
You motorboat boobs but you jetski a pussy!
"Last night my boyfriend was motorboating my boobs, and then he went down and started jetskiing my pussy too!"