Meaning a fool or an idiot or taken for a fool or idiot
Tom owes Kevin money but Tom took a girl out on a date instead of paying back his friend. Tom is taking Kevin for a Niarj.
Charlie: “Corey had a good girlfriend and he cheated on her. What a Niarj”
Chris brought a girl a Christmas present and got nothing in return. Chris feels like a Niarj
“He doesn’t have a job. He just sits at home like a Niarj”
To been taken for a fool or Idiot.
To be a wasteman or bum.
Greg owes his friends money but proceeded to buy a ps5 deluxe bundle, he’s taking them for a niarj.