Jet Boat 

A boat that is propelled by water being thrusted through a impellor inside a housing, Paradise Jet Boating is the best Jet Boating company in Australia and use water jets

Those jet boats are able to go in very shallow water

Jet Boat by 001.427 July 18, 2021

Quadruple Jet Boat 

The act of putting two women next to each other and motorboating between the innermost breasts while fondling the outermost breasts. It is called this because a jet boat is far superior to a motorboat and there are four breasts involved.

Josh did a Quadruple Jet Boat with those two hot chicks he took home from the bar last night.

Quadruple Jet Boat by ChazWski March 27, 2015

Jetboat 

The act of farting on a Woman's breasts. Similar to a "motorboat" but with with added power and control. This act can be performed in a variety of settings but is best while both parties are crouched in a bathtub and wearing Captain's hats.

This act is usually followed by shame and uncomfortable eye contact. Jetboating is not recommended before family functions or important job interviews.

"Hey Zeke, I could really go for a Jetboat right about now"
"Oh yeah? I'll start the bath if you want to grab the Captain's hats"
"Wait! Tomorrow's Thanksgiving, maybe we shouldn't."

Jetboat by Stumpy Joe June 7, 2013

jetboating 

similar to motorboating where you blow rapid air bubbles in between a women's boobies, jetboating is doing the same on the at first frightened but eventually appreciative women's taint and butthole

she wasn't really into the 69 until I starting jetboating her and she climaxed in about 10 seconds

jetboating by millpool21 August 14, 2021