Mississippi mud slide

When a man shits on a woman's chest sitting backwards so the bowel levitates torward the woman's neck.

My lady loves a Mississippi mud slide

Mississippi Mud Slide

When a man sticks his erect penis in a man or woman's anus, while the man or woman being penetrated defecates on the erect penis, while the penis is thrusted in and out of the anus.

I can't wait to try the Mississippi Mud Slide

Mexican mud slide

Shitting on a water slide and sliding down it with a dildo on your head causing your entire body to enter a woman’s vagina at the bottom

Me and your mum did a “Mexican mud slide”last night

new zealand mud slide

A New Zealand Mud Slide is the act of defecating on a prostitute's chest and then proceeding to sit it in and sliding down her chest so your feces smear over her chest like the mud on a set of mountains.

"Yo! Did you hear Kevin gave the Jefferson Street hooker a New Zealand Mud Slide?"
"Dude! No way! That's awesome! Did he take pics?"