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1.
To receive or make a phone call while taking a crap.
To Give:

"Hey I was having a shit earlier, so I decided to shit ring Gary!"

To receive:
"It was fucking gross earlier, Dave shit rang me, he was like 'HEY GARY I'M TAKING A SHIT HAHAHAHAHA'..."
by Wolf3h August 05, 2009
 
2.
A somewhat faded stain of residue primarily shit due to lack of wiping the asshole or just a gross asshole on a woman.
Dude she isn't hott, I bet she has shit ring.
by Noob Saibot September 22, 2005