1 definition by The Mighty Pinecone
Not to be confused with the motor boat. The Boat Motor takes place during the act of cunnilingus. When the vagina becomes sufficiently moist the male makes a buzzing sound with his lips, much in the way you would blow into the mouthpiece of a trumpet. For greatest effect, couple with the Tidal Wave.
by The Mighty Pinecone June 23, 2016