Top definition
The amount of motorboating you can do to a woman, preferably on a scale of 1 to 10.
Guy 1: Im going out with Mackenzie now!
Guy 2: Sweet dude, what's her motorboatability?
Guy 1: About a 7.
Guy 2: Good work.
by Prince Zuku May 21, 2010
Get the mug
Get a Motorboatability mug for your girlfriend Beatrix.