I was shook. Urban Dictionary defines The Motorboat as: ''The act of pushing one's face in between two ample breasts, and rocking one's head side to side very rapidly while making a vigorous, lip-vibrating "brrr" sound.” My first reaction was to scream, “What the hell!?” To which he replied simply, “Sorry.”

What is motorboating slang for?

Assuming you mean the slang usage rather than the use of a boat with a motor. 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.

What is a motorboat called?

A powerboat, also referred to as a motorboat or speedboat, is a boat which is powered by an engine. Some motorboats are fitted with inboard engines, others have an outboard motor installed on the rear, containing the internal combustion engine, the gearbox and the propeller in one portable unit.