by Tay Tay Sauce October 27, 2018
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
by ale x January 16, 2006
by Bb dre November 19, 2019
by Ackack August 10, 2019
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 April 12, 2004
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 11, 2008