Acronym for "Not Your Personal Army". An old phrase used by /b/tards to newfags who wish to cause a ruckus with raids and pranking. Essentially saying that Anonymous isn't a resource to use for your own personal vendettas.
"HAY GUISE, this dude fucked my girlfriend...here's his myspace"
Not Your Personal Army. Originated on the 4chan's /b/ as a response to any person that would try to exploit the /b/tards in order to achieve some sort of personal revenge (i.e. raid requests). Can be bent to fit a broad range of situations where an individual seeks help, but does so in an inapropriate place, tries to hide his real intent behind a stupid facade, or is simply too annoying and persistent to deserve better.
Person 1: HAI GUISE LOL I HEARD U HAET EMOS THIS DOOD IS EMO HIS MSN IS ******** XD BYE
Person 2: Not your personal army.
Person 1: Sup, I found this picture, sauce plz thx??????
Person 2: GTFO, NYPA.