Define Notum Meaning

Notum
notum is some times used as slang for part of the asshole. not sure why but used quite commonly in england

hey bob, how's your notum feeling today? a bit bloody?
By Shandee
Notum
Its not so much part of the asshole as it is the name for the 'hole' cavity itself.

That guys notum is ripped!
By Merrilee