With a girl (or guy) standing in front of you and you both face the same direction, she (he) reach behind them and jerk you off, like they are driving a motor boat.

To grab two huge handfuls of a womans breasts, while squeezing them together and performing a rapid left right lip flapping motion. no homo love you tito.

A seacraft that operations using an engine. They're either inboars or outboard installed on the rear that spins are propeller that goes WHHEEEE.

When making love to a girl and one of her legs start shaking so much,that u can put her in the back of a paddle boat and have no need to paddle,just use the motor boat or sex leg.

Orginally called a "vince vaughn", the motorboat is another name for a mix of Southern Comfort and Mountain Dew Code Red.

Carpet-munching, going down on a woman's vagina, muff-diving, cunnilingus

To bang someone from behind in a repetitous "putt-putt" motion that resembles the sound of an idling motorboat.