(1. When you shit so carefully and make a shack out of shit.
(2. The shack in your ass where soldiers of popcorn kernels, donuts, and fries live and attack your toilet or pants.
Dude, Tom Kenny's shit shack attacked his pants today!
My dog, 1978 Ford Pinto, shat so carefree, yet somehow made a shit shack.
Girls who wear ridiculous amounts of colours on their clothing. Play safe. Play black.
"Brittany didn't get the memo about always wearing black, it's 2016... She looks like a rainbow took a shit on her
"Yea totally a rainbow shit."
A stool with substantial length and exit velocity, causing one to ponder butt sex while finishing their time on the toilet.
He: "Man that rainbow shit made me look at Steven differently."
Her: "Ugh why are guys so gay"
An unbelievable occurrence, similar to oh shit or oh snap.
You got to be Rainbow shitting me?!?
When you dicked her down so good in the ass that when you fuck her in her twat she shits all over your balls. In this case, shit-balls are a positive thing.
"Shit-balls!" Mike exclaimed as he came all over Kelly Ripa's face.
Someone who gets turned on by watching or sucking their balls and shiting at the same time.
I creeply watched as some random person did shit balls in public
Jason shat while sucking his balls.
I watched as my friend was sucking balls and having great diarrhea at the same time.
Yo man why you be shitting while sucking yo balls??
Poop hole. The nasty part. Butt deposit.
Liz did we just make up a new cuddle position? I feel bad though because you’re right next to my shit ball!