Carol was so drunk the other night, I gave her a motor boat when she showed her tits
By Lucretia
Motor Boat
The motor boat is done on a girl's clitoris,(putting your lips together and blowing air through them) making a motor boat soundlike a raspberry or zerbert. a lot more fun than in between the tits for both people.
Nothing like a good motor boat, just be prepared to clean up the water on the floor as the wake can created a bit of a mess.
By Amalita
Motor Boat
With a girl (or guy) standing in front of you and you both face the same direction, she (he) reach behind them and jerkyou off, like they are driving a motor boat.
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 Pooh
Motor Boat
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.