Shiss 

When you are walking your dog and he attempts to lift his leg to take a piss, then re-thinks he has to shit. Resulting in a dog shitting with his one leg up. Very comical!

Good Ol' Taz took a shiss on that rock out of piss/shit confusion.

Shiss by Tiptop77 November 28, 2012

Shiss 

Going for a shit and a piss at the same time.

im off for a Shiss

Shiss by Max Donnanoodles August 12, 2016

Shiss 

When ones person needs to take a shit but also a piss

Man I had a good shiss last night

Shiss by Thepansexualunicorn July 21, 2017

shiss 

see 1.5

My shiss was horrible.

shiss by Rob November 25, 2003

shiss 

An attempt to shit in which only pissing occurs. 3-5 solid rectal pushes resulting only in a half toilet bowl of urine leaving the body.

That shiss wasted ten mintues of my life

shiss by MikeDidIt March 18, 2008

Shiss 

When one proceeds to urinate and defecate simultaneously.

"After all that great food and drink, you know i'll be the first to shiss."

Shiss by TBellis April 26, 2010

Shiss 

When urinating takes as long as defecating.

Dude...have you been laying some cables?

Nah....I just had a shiss

Shiss by northern Queensland September 25, 2008