To freeze a piece of shit and roger your partner with it. As it melts the poo willslide down her/his legs.
When she awoke I told her that she had left a candy bar in her ass crack by mistake; I was ashamed to admit I had given her the Mississippi Mud Slide while she was sleeping.
while having anal sex with your partner, you proceed to urinate inside his/her butthole. Followed by removal of the penis and lying on the ground (preferably a solid and easy to clean surface) your partner still containing the urine inside them proceeds to deficate on your face.
"oh my jenny, whats that awful stain on your new carpet?"
"Oh thats just last nights mississippi mud puddle, we got a littlewasted"
When a person gives themselves an enema, but holds it in. You then have vigorous sex. Just before climax, he rams his dick in your ass and cums. When he pulls out the fluids explode from your rectum like blender on high speed with no lid on.
Man, me and George tried a Mississippi Mud Milkshake last night.....let's just say the housekeeper isn't gonna be happy in the morning.