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.
Last night i gave my girlfriend the boat motor and she came nine times
by The Mighty Pinecone June 23, 2016
Sticking your face between a ladys fun bags and blowing hard allowing the boobies to wobble on your cheeks.
I went motor boating with the missus last night.
by MrAsh December 31, 2005
to bury ones face in some giant jugs and shake your face back and fourth while blowing out, and making a hubababa sound.
Man look at that rack!
yeah i'd motor boat them jugs all night long!
by kimbo April 25, 2006
The act of sticking your face between a pair of ones breasts and shaking your head violently while making noices that resemble a moter boat.
Hey Jason, I heard you gave that girl a motor boat last night, you motor boatin son of a bitch!!
by Nathan Moreau April 10, 2006
When you blow a raspberry in between a girls tits, making a motor boat sound
Carol was so drunk the other night, I gave her a motor boat when she showed her tits
by D January 31, 2005
The act of making an engine noise when sticking your face in a woman's BOOBS.
Michael: Did you hear what John did last night?
Buck: Yeah, I heard he was motor-boating that hot piece of ass.
Michael: Yeah, sick she was UGLY.
Buck: But it wasn't down there, it was up top.
by Rora Marie December 8, 2007
This is when you place you face straight into a females cleavage/breast and do a lip trill making the sound of a motor boat and shaking your head from side to side.

It usually tickles.
"Motor Boat me baby!"

Charlie smiled as he quickly shoved his face into the big breast and made a motor boat sound shaking his head.
by NikkehBabeh February 7, 2010