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4.
shitstop: noun: something you do before anal sex. as in "hold on i gotta take a shitstop before we go any further"
see above:

as in "hold on i gotta take a shitstop before we go any further"
by Shitstopper June 09, 2005
 
1.
When one needs to break up their current activity for the sole purpose of defecation.
"Dude, we gotta stop this jog and find some bushes for a shitstop. I got a growler the size and temper of grandma coming."
by SkyFood June 14, 2009
 
2.
When one goes to the bathroom to piss, but subsequently decides to take a shit as well. Similar to a pit stop in nascar, if a driver needs to get gas, he/she might decide to change the tires as well while they're at it.
Anonymous kid A: God dude I got out of Math class and had to take a piss the entire fucking class, I felt like I was about to get a UTI but I had to copy this Asian chick who was rocking a Hello Kitty watch so I knew she knew her shit.

Anonymous kid B: Fuck that class dude, math is the lesbian sister of biology, so my conservative catholic parents would never let me take it. How was that piss?

Anonymous kid A: Dude, it started out as a piss, but since I was already there I decided to take a shit stop and Release the Kraken on that toilet!
by Hurdsauce May 20, 2011
 
3.
Like a pit stop, except done when driving on the road, too far from your home restroom. Typically happens on road trips, after a night of drinking, or else shortly after eating fast food.
Husband and wife are driving on the highway, the husband swerves the minivan into the rest area...

Wife: What are you doing?! We just ______ (ate, filled up the car with gas, etc.).

Husband: Sorry, gotta make a shit stop!
by J3553 October 30, 2007