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The placement of one's face, specifically the mouth, into the area between a well-endowed woman's breasts, followed by a rapid shaking of the face in a side-to-side motion accompanied by yelling. The resulting sound that is created sounds similar to an outboard boat motor.
Sherry was wearing a low-cut top and Mike approached her and started motorboating in her cleavage.
by BMan01 November 24, 2005
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2
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 30, 2005
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3
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 07, 2007
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4
A great way to end an awkward conversation with a girl you don't want to talk to.
"This girl was in my room and I couldn't take it anymore so I motorboated her. After the motorboating she left."
by A Bobby August 28, 2006
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5
The act of making a monotone hum while pinching and moving the cheeks back and forth
We thought Michael was getting lucky in his room, but it turned out he was just motorboating by himself.
by BobbyHi11 December 10, 2014
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6
Unintentionally farting while walking. A short, but loud fart comes out with each step. So it sounds like a motor boat engine grumbling as you walk.
My buddy was so embarrassed cause he was motor boating in the cafeteria.
by Jason Blackwell August 26, 2006
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7
Also something done to girls named yael by kids named michael
"yael's profile pic has someone touching her boob, don't they know that michael's motor boating property?"
by superman201 April 29, 2009
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