when a woman motorboats a fat man's titties while jacking him off
shayna motorbated sam on her lunch break.

she motorboated his moobs while jacking off his cock.
by bubbalous116 July 22, 2010
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The act of masturbating while in a car.
Sandy motorbates to stay awake when she needs to drive along on long trips.
by Kate Charlton August 8, 2008
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To motorboat oneself
Big-Boobed Beryl: "Whoa, I can totally motorbate with these puppies!"

Tiny-Titted Tracy: "What's that you're doing Beryl?"

Big-Boobed Beryl: "You're too small to learn motorbation"

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See motorboat motorbate motorbation motorbated orabation
by louleykrista August 3, 2011
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The act of masturbating while in a car.
Motorbation helps Sandy stay awake when she needs to drive along on long trips.
by Kate Charlton August 8, 2008
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The act of masturbating while in a car.
Motorbating helps Sandy stay awake when she needs to drive along on long trips.
by Kate Charlton August 8, 2008
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(verb) To love looking at a car so much that you feel that you may just be able to masturbate to it.
Guy 1: what we're you doing for an hour, alone in the garage?
Guy 2: Hmm? Nothing. Just uhh... you know lookin' at my new 67' Shelby...
Guy 1: Eww. Dude. You weren't motorbating to it were you?
Guy 2: No. No! of... course not...
Guy 1: ....Why the fuck do I even hang out with you?
by C.C. JAW VIII December 4, 2013
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