McQueen is a derogatory word used to describe when your partner places clear tubing in your anus, fills it with water and then places two Siamese Fighting Fish in it for a poo battle royale. The remains of the loser are then passed out, while the winner takes up residence in your bowels.
She gave me a viscous McQueen the other day.
Did you bet on the McQueen fight on tuesday!? Mr Bubbles won me a fortune.