Road Boat 

The action of motor boating ones ass cheeks. Also known as the reverse motorboat.

Oh my god your Mom's ass is so epic I'd love to road boat that.

Road Boat by Rex514 May 3, 2012

Road Boat 

An American luxury car from either the 60’s or 70’s with no power and no handling whatsover
- has to have a humongous v8 with like 150 hp
- leans in every corner like it’s a 50 tonne freighter

Hey wanna go for a spin in my cadillac?
No man that thing rides like a road boat.

Road Boat by Dat_slav February 20, 2019

Roadboating 

The act of manning the helm of a vessel (usually while inebriated or consuming a beverage of some sort) while it is being towed on a trailer behind a truck. Most commonly road boating is seen in MD when the truck bed is full of people and golf bags and space and time are of the essence. It also reduces the number of DDs needed for a large group of people.

We had a couple guys roadboating to the golf course because the truck was full and they wanted to drink on the ride there legally (drinking on boats while they move is legal unlike trucks).

Roadboating by Capt Shipfaced December 6, 2012