When a dog or cat sits and drags its rear end with its front legs to either scrape off feces or relieve their impacted anal glands. see also boot scoot
We all laughed at Fluffy's motor boating but Steve was not so happy when it left streaks on his carpet.
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.
It means the activity of putting one's face between a woman's breasts, and rocking turning one's head rapidly from side to side while making a noise like a motorboat.
"Motor-boating her titsand gobbl bbl bbl bbl bbl..."
Like motor boating but to a nut sack. When a man puts their lips and places then in between two testicles and blows with tight lips soaked in saliva while shaking their head back and forth in a quick-like motion. The effect is the sound somewhat similar to a motor boat.
Mike: check out that nut-meal.
Aaron: motor broating that all morning long and probably late into the night sounds like fun. If my lips are a boat then I have a full tank of gas.