SplatterPacks 

When one shits soft stool into their underwear; only to sit down and it squirts out the sides of the leg holes making a "squish" noise.

Brian: What was that sound?

Nate: I just had splatterpacks on deck.

SplatterPacks by Yes, its Brian January 25, 2008

splatterback 

The unintentional remnants left on a toilet seat or toilet bowl after a particularly violent or bulky bowel movement.

Bert: "Better flush the toilet again Chuck; there's some splatterback."

Chuck: "I knew we shouldn't have gone to that taco stand."

splatterback by B December 6, 2004

Splatterjacked

The process in which one hides in close proximity while their friend is masturbating and then when they climax the person comes out and throws the cum rag in their face

I was yanking it on the kitchen table when suddenly my roomate hopped out of the refridgerator and splatterjacked me!

Splatterjacked by Kurtzkurtz11 January 18, 2012