Shivetting 

the action of a canine as it strains to undertake the release of its bowels with its tail quivering

a dog that wishes to undertake a bowel movement, stops and strains with its tail in the air. the tail quivers with the strain as it shivets, or undertakes shivetting

Shivetting by amanda jones November 27, 2012

Shitting lava 

Highly acidic diarrhea resulting from spicy food or stomach upset.

GAAAWD, I am shitting lava after the Burrito buffet!

Shitting lava by I, Wreckerrr November 11, 2016

shitting Irish 

When you shit green turds.

I must have the flu I'm shitting Irish.

shitting Irish by jpg3 February 1, 2015

shitting like a goose 

The state of having extreme diarrhea. The art of peeing out of your asshole.

Boss: "Are you coming into work today, Bud?"
Joey: "I'm not going to make it today, Boss. I got ahold of some bad street tacos last night and I'm shitting like a goose this morning."

shitting like a goose by #1SMTX October 3, 2015

binge-shitting 

What naturally happens following binge-eating.

After a particularly intense and protracted eating episode, I passed out during the binge-shitting phase.

binge-shitting by Dr Bunnygirl March 7, 2018

shitting in stereo 

a situation where, in a public bathroom with multiple stalls, two people in adjacent stalls are taking a pungent shit simultaneously, creating a collective smell from both stalls that leaks out of the bathroom and into the nearby hallway.

No, Malcolm, I will NOT shit in that stall. Do you not see the dude in the stall next to it laying a mud monkey? I am morally opposed to shitting in stereo -- mono or no go for me.

shitting in stereo by Peven glugh November 25, 2011

Properly Shitting 

You lift up your shirt, wear your pants backward, do a handstand, and take a big shit through your zipper hole. Then you ask your mother once she is finished with her dinner if she could kindly wash your nutsack.

Hey man, I just took the biggest shit of my life.
Did you make sure to lift up your shirt? Its a common courtesy thing.
No, I wasn't properly shitting.
*GASP*

Properly Shitting by SpectralCuckSlayer February 2, 2018