Placing your mouth in between the butt cheeks and viciously and aggressively shaking your head back and forth while making the sounds of an out board motor (comparable to motorboating tits).
by JGutt February 27, 2015
Get the anal motorboating mug.(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?
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 3, 2013
Get the Motorbating mug.Sexual act with instructions as follows:
1. Place face between lactating breasts
2. Shake face briskly back and forth
3. Make outboard motor sound effects
Extra points are awarded for milk spray...
1. Place face between lactating breasts
2. Shake face briskly back and forth
3. Make outboard motor sound effects
Extra points are awarded for milk spray...
by Dan92672 June 18, 2011
Get the motherboating mug.A practice of shaking your mouth back and forth over the lucky birthday girl's (or boy's) breasts, an equivalent amount of times to their age.
Darn, it took forever to finish Barb' birthday motorboating because she is now 88 years old. My lips are numb.
by ClavicleLover;) July 7, 2010
Get the birthday motorboating mug.by Trip T March 10, 2009
Get the Motorbating mug."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
Get the motorboating mug.by riceninja69 June 16, 2009
Get the motorboatin son of a bitch mug.