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1.
a condition caused by not wiping properly.
"i'd go down on her, but i just can't get past the poo ring".
by Martoonie N Leashie January 23, 2004
 
2.
English slang, from England, meaning anus or rectum. a translation to american slang: butthole
"bill was being such a pooring to me today."

"jill has a tight poo ring."
by Ra Jaconan July 09, 2006
 
3.
The crusty remains of the daily shit usually found around the batty crease or mouth for homosexuals
"Woah look at that dude his poo ring looms like a brown crusty donut"

"Rhys bruv your such a poo ring go get some friends"
by Sir Shagalot June 23, 2006