1 definition by Hairy Peter

Top Definition
(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.
by Hairy Peter October 11, 2012

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