(1) Noun: Proper name: The Notorious M.O.I. is a legendary cyber babe and performance artist who frequents certain online message boards. M.O.I. stands for Magnificent Omnipotent Individual.
(2) Adjective: Slang for absolutely fabulously cool, hip and awesome.
(2a) That's so very Notorious M.O.I. of you.
(2b) You're totally Notorious M.O.I.