Abbreviation for "Not My Job", commonly used in the work place in response to tasks not related or relevant, or when one cannot be bothered. It often evolves to a double repetition - "NMJ NMJ" which rolls elegantly off the tongue.

Internet persona(s) who happens to follow you and you happen to follow them back and maintain communication with and have a mutual liking for eachother whether it be friendship wise, etc. (Mutuals if more than one mutual)