Motorbate 

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.

Motorbate by bubbalous116 July 23, 2010

Motorbate 

The act of masturbating while in a car.

Sandy motorbates to stay awake when she needs to drive along on long trips.

Motorbate by Kate Charlton September 30, 2008

motorbate 

to masturbate whilst motorboating a woman

i'd motorbate that
those tits look great, but theyd look better with me motorbating them
im going to motorbate the fuck out of you later

motorbate by JonStonehill March 19, 2011

Motorbate 

Masterbating while motorboating some boobies

Biff needs to motorbate to get the job done.

Motorbate by voodoobaby11 January 2, 2012

motorbate 

To masturbate while fantasizing about motorboating someone with large breasts.

After getting shot down by the girl at the bar with huge titties, Dan went home to motorbate and dream of the day he would tear a whole in them with his stubble.

motorbate by sb2013 September 6, 2009

motorbate 

When a woman or man with extremely large breasts, nuzzles their face in between their breasts and shakes vigorously while making motorboat noises.

My boy Jerry has some big as titties.
I think he stays home and motorbates all night.

motorbate by brasco August 9, 2008

motorbate 

(verb) 1. the act of motorboating another's breasts while masturbating. 2. masturbating to the thought of motorboating another's breasts.

1) Look at Aimee motorbate that girl. 2) I'm going to motorbate to Jae's boobs last night.

motorbate by Hairy Peter October 11, 2012