what does it mean to motorboat someone
To motorboat someone has several meanings. First, motor boating means, sticking one's face on a woman's breast and creating a brrr sound. The other one is, when a dog or a cat scrape off their feces. To know more, read http://www.urbandictionary.com/define.php?term=motor%20boating.
What it means to motorboat someone is to put your mouth between a woman's breasts and blow. The other definition is a water vehicle with a motor.