Metro

Grinner a loser in NJ beat bust

She won’t be smiling for long.

This 19-year-old woman from Wyckoff, NJ, yukked it up for her mug shot after she was arrested for luring her ex-boyfriend to a schoolyard so he could be brutally beaten and robbed by her new beau, cops said.

Margaux Tocci allegedly invited her former flame for a ride in her new car and then suggested they go for a walk at a local school Thursday night.

That’s when two men, including her current lover, allegedly jumped out and pummeled the clueless ex with a pipe and baseball bat.

The victim was taken to a hospital for stitches in his head.

Police cuffed Tocci later in her blue Ford Fusion and charged her with robbery. A judge set bail at $50,000.

Her beau, Daniel Chaupiz, 20, was charged with robbery and assault and could not make $100,000 bail. Samer Suhaib Saleh, 25, was also busted and a third man is at large.