Najeff
A person who talks trash about everyone, but they're scared of their own shadow. They act like they're God, but they can't even beat their own brother in a game of chess.
"He said I was a najeff because I lost to his mom in chess.", @chessloser
"She called me a najeff because I wouldn't fight her in the lunchroom.", @lunchroomwarrior
"He said I was a najeff because I cried when my dog died.", @dogdaddy