Stoolcat 

Noun.) A dump so large that it piles up in the toilet to the point it breaks the surface of the water resembling a cat sitting on a stool. Furthermore a Stoolcat can be sub-categorized depending on its physical attributes. i.e. The Calico Stoolcat (Corn and Water Chestnuts) The Siamese Stoolcat (Grey in color) etc.

Example 1:

Shawn: "Dude, was that you that just left a stoolcat in my toilet?"

Mike: " Ha! Yeah, i know how much you love those little guys!"

Example 2:

Jake: "Oh my god I have to crap so bad i bet i'll leave a stoolcat!"

Stoolcat by MikeyRef February 4, 2010

Stoolmate 

When you and another person are in a public bathroom and both of you are waiting for the other to leave because you both have to poop and would like to poop in peace yet neither of you want to make the first move.

I sat in the walmart bathroom for 20 minutes in a stoolmate with the person next to me because we both needed to poop but neither of us would leave nor start pooping.

Stoolmate by Kaytiekat October 3, 2013

Stoolmate 

Someone who you share a shitting schedule with.

I need to leave this meeting a few minutes early so I can claim the good handicapped stall before my stoolmate, Jim, beats me to it.

Stoolmate by Junablub April 9, 2015