Eavesdropping, listening in an all-encompassing matter without one's permission.
Alice: "Bob, don't pull an NSA on me, I need my privacy!"
Bob: "Don't worry Alice, Eve has been NSAing you since yesterday morning."
by BruceGibson August 04, 2013
Abbreviation for "Not Secret Anymore" which can be used in general not to be confused with the abbreviation for the National Security Agency.
Everything I say and do on my laptop, on the internet and worse, in what used to be the comfort, safety and privacy of my own home, is NSA.

Now my whole life and everything I once considered personal and private including: what I look like when I wake up; when I sleep; how I look naked; how often I fart; my whole life story; what I say to a confidant like my mother is all NSA since those guys loaded spyware on my laptop, ironically one of whom repeatedly told me I couldn't keep a secret.

Antonyms: be faithful, be loyal, defend, protect, support
by Goddess12* December 21, 2013
Not Secret Anymore
John Doe 1: How the fuck do they know I like to fuck goats?!
John Doe 2: It's NSA

NSA: John Doe 1, you're under arrest, we're going to have to confiscate your hardware, you have right to remain silent if you choose to give up that right we will still our hardware into.
by Goddess12* December 22, 2013
To know something private about someone or read his/her thoughts
A: So, I guess you're thinking about her again?
B: Dude, stop NSA-ing my mind!
by sogneerin January 18, 2014
Pronounced 'En-Sas', positive acronym meaning no strings attached sex. Similar in use to ONS however usually used when it meant nothing to both parties.
trevor: so you seeing that girl now or what geezer?
tony: nah man, strictly NSAS, on the real.
trevor: seen?
tony: seen, she's safe wit that tho.
trevor: seen.
by 2toN aka second to none June 26, 2007
Created in 1952 by Truman and his cabinet, the NSA was, and still is one of the most if not the most secretive agency in our country. In 1982 (or so) its cover was blown by a book called The Puzzle Palace, finally a glimpse inside the workings inside the nations most elusive security workings. Great read, pick it up sometime.
NSA - No Such Agency
by jp+jj December 10, 2004
(Nsa) no strings attached or (NSF) no strings fun, less complicated, no real emotional attachment, strictly sexual encounters, this doesn't have to mean long term it can also be a one night stand.

By strings they mean, no emotional attachment other than sexual.
by www.Wink2Play.co.uk July 17, 2012

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