a motorboat involves a girl with breasts large enough for a human head to fit between them. The owner of the head then proceeds to blow out of their mouth vibrating their lips. This action will make a sound very similar to a motorboat engine, hence the name.
by houseboyt July 19, 2010
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by Bb dre November 19, 2019
Get the Motorboat mug.by Ackack August 10, 2019
Get the Motorboat mug.While performing oral sex on a girl, flap your lips together on her clit, thus imitating the sound of a motorboat. She'll love you forever.
by womanizer June 18, 2006
Get the motorboat mug.While performing oral sex on a girl, flap your lips together on her clit, thus imitating the sound of a motorboat. She'll love you forever.
by istef July 6, 2008
Get the Motorboat mug.To be motorboated - when you go down on your girlfriend/misses and pout whilst blowing causing your lips to flap against your female friend pussy...aka motorboating
by moanerme August 19, 2014
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