Take a warm bowl of milk, drop testicles into bowl, have girl take straw and blow bubbles in milk while executing a handjob.
She's so wild she gave me a French Motorboat...
by JFW April 30, 2004
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When a woman puts her blackberry/smartphone/cellphone in her bra between her breasts. When it rings on vibrate she will recieve a blackberry motorboat.
That slut puts her phone in her bra so when she gets her booty call, she will get a blackberry motorboat.
by HallaMBomB February 4, 2010
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The act of placing one's face in the butt crack of another person, followed by rigorous side-to-side motion of the head accompanied by the vibrating of the lips causing a sound similar to an outboard motor. See Motorboating
Do know if he can backwards motorboat himself?

No, I've been doing it for him for the past few months. He's just not that flexible anymore.
by 'ice' June 8, 2009
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Vibrating one's lips between a females booty cheeks!
Damn that girl has a fine ass. I sure would like to give her a "muddy motorboat."
by B and T October 12, 2006
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When there is a Girl or group of girls with absolutely cracking, great tits, which you want to motorboat, rub your face in, that area then becomes motorboat central, referring to the fact that there is so much brilliant funbags to rub your face in that the area has become and the place to be for motorboating at that particular time. usually followed by a little rubbing face action to indicate the serious goodness of the girls tits!
"corrrrrr, it bloody motorboat central over there!"
"this place is fucking brilliant its like motorboat central!"
"omg, they are just motorboat central!"
" I went to a banging party last night and it was fucking motorboat central!"
by PressureJB December 17, 2009
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When you motorboat the breasts of a woman who is lactating, and her breast milk gets on you.
Susan just gave birth a few weeks ago, and when I motorboated her newly massive jugs I got a face full of Boobie Juice; I didn't realize I would be getting a Leaky Motorboat.
by TheCW May 17, 2011
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Motorboat mouth a person who talks a lot and can't stop talking
Chris sure has a motorboat mouth
by Tree dog February 9, 2017
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