Similar to when a
catamaran blows its horn as it docks at bay, The
Catamaran occurs when a penis is inserted into the anus of a female companion. At the time of penetration, the female flagellates, thus creating the "
horn blowing" effect that takes place when the "catamaran" docks. If defacation occurs during the "horn blow" The Catamaran would then be known as "
The Black Pearl".
"I totally catamaranned this chick last night. She was lactose-intolerant, and we'd just gone out for ice cream, so when she suggested we do it anal, I thought The Catamaran might happen. I was right."
"Dude, my girlfriend was complaining about a
stomach ache, so I suggested we do The Catamaran... it turns out we went into
bonus rounds because on top of that I got
The Black Pearl."