(n.) The unfortunate combination of a 3-1/2 hour drive to Lake Tahoe, coffee, Carl's Jr's breakfast burger and a 7500' change in elevation leading to an urgent, and often violent, assault on the ski resort's nasty bathroom.
"Dude, where ya going? You don't even have your boots on yet?"
"Just leave me the keys and I'll catch up w/ya'll in a couple runs...I've got a Tahoe Mudslide workin and I'm afraid to fart"
When your sexual partner is giving you a rim job, you have an orgasm and shit in there mouth.
She said she wanted to do something freaky, so I suggested the Connecticut mudslide
Similar to the Cleveland Steamer, but the person doing the shitting has diarrhea. Simply put, 'the mud goes down the mountain.'
Stan ate some Mighty Taco before he gave that chick a Pasadena Mudslide.
The act of defacating on your partner while executing a reverse piledriver.
"My new shirt was ruined when Sean gave me an appalachian mudslide:
Defecating on a woman's breasts while you straddle her face for fellatio.
Tammy didn't appreciate the Pasadena Mudslide I gave her.
During 69 the top rider begins to slowly shit, the bottom receiver watches at is slowly slides down the ass and lands on the face, it creates a mudslide with a soft landing.
Dude, my tongue was all in her pussy until she pulled out the mudslide and it landed on my eye.
The act of taking a crap at a social gathering at the home of a person you dislike, instead of using toilet paper you wipe your ass on either their shower curtain or hand towels.
"I was at Brian's house and did an Angry Mudslide in his bathroom".