Check Out OBJ's Cousin's Flippin' Awesome Workout!!

Odell Beckham, Jr.'s cousin isn't on an NFL team right now ... but that hasn't stopped him from making incredible highlights, 'cause Terron Beckham literally went head over heels for his newest workout video.

Not only is he squatting (495), deadlifting (495) and benching (405) a ton of weight ... he can land a nice backflip that would make Simone Biles proud.

Terron made headlines when he tried out for the New York Jets before the 2016 season ... and although he didn't make the squad, it's cool to see him still reppin' the Green and White.