When two people are having sex in the shower and one of the two people drop a deuce. The deuce then slides to the drain like a boat and swirls around in the drain.
Female: "I can't believe that you did that in the shower this morning!"
Male: "They refer to me as the captain of the Mississippi Boatride."
Male: "They refer to me as the captain of the Mississippi Boatride."
by filthyg June 2, 2011
Get the Mississippi Boatridemug.