Pronounced N.A. it usually means someone who's work ethic is between 0 percent and lethargic. It can be used as an adjective a noun or a verb.
Matt: Have you seen Ronda today at work, she didn't get any of her work done, and look at her now she is texting while on the clock...this is absurd!
James: I know Bruh! She is pulling an Enej