Definitions by Wm the Wingman

Malibu Mudslide 

The unfortunate result during anal sex if the person doing the receiving does not properly prepare for the event, ie douching with a colonic or an enema, something, ANYTHING, for God's sake.

His date knew that anal sex was going to happen, but failed to prepare, and after a few minutes a Malibu Mudslide cut their evening short.

Malibu Mudslide by Wm the Wingman October 8, 2020