Splatterday 

To consume as much alcohol as you can until you splatter on any Saturday of the year. Vomiting, blacking out, and/or passing out can be considered "getting splattered".

Matt : Hey! Splatter day this weekend at my place?

Chase: I don't know man. Remember what happened last Splatterday?

Splatterday by FunnyAssMatt February 7, 2015

Splatterday 

A movie marathon of nothing but horror/thriller movies in which there are many scenes with excessive amount of blood, guts, and gore

Jenny: OMG Splatterday movies are so gross

David: Come on they're not that bad, I'm pretty sure the doctors will be able to sew her eyelids back on.

Splatterday by McStreamy December 14, 2012

Splatterass 

One who ejects fecal matter so violently from one's anus that shit splatters the toilet bowl AND the underside of the toilet seat.

Eww! I lifted the toilet seat to take a piss earlier and got shit on my hand. Looks like splatterass was here again..

Splatterass by PooGURU4u May 6, 2011

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

splattery hots 

Earth shaking, mind-bended, knee quaking diarrhea with a burning sensation. Similar to molten lava pouring from your anus.

After he had spent the night eating jalapeños with hot sauce and binge drinking, Steve woke up with the splattery hots and thought he was going to die.

splattery hots by Digitaldevil November 3, 2006

Splattercakes 

A turd that explodes from your arse with the consistency of sloppy mashed potato... Only brown. Ofter occurs as part of an After Grog Bog (AGB)

Hey Dougie, you should have seen the Splattercakes that I just left in your toilet bowl.

Splattercakes by Flatus McTurd'o'head August 6, 2009

Scatterday

The day after one has part taken in the use of drugs, such as ecstacy, and are feeling "scattered". The individual spends the day on the couch as a space cadet, watching whatever is on tv, even if it is not interesting even in the slightest.

" what a night, dude are you coming to the beach today"?
" no chance man, todays scatterday"

Scatterday by obi 1 bone me July 11, 2009