Tillamook Mudslide

When anal sex triggers massive diarrhea on the part of the receiver. So entitled because the resulting spray of shit, lube, and cum resembles the namesake ice cream.

Chad was taking Allie up the backside and thought it was the best ever until he unclogged her colon and got a Tillamook mudslide all over his bed.

Scio Waterfall

While you stand and a chick gets on her knees and starts blowing you, you throw up on her. So named for the shitty Oregon town where this first originated.

"Hey, dude, did you finally get Jen to play magician last night?"
"Yeah, but I fucked it up and pulled a Scio Waterfall on her. Apparently she's still trying to wash chunks of the chicken mcnuggets I ate out of her hair."