Johnny Manziel CUT

The Cleveland Browns have officially cut socialite and occasional football player Johnny Manziel ... announcing the move Friday via the team's Twitter account.

It wasn't unexpected ... most league insiders thought the Browns had grown weary of Manziel's antics -- including a grand jury investigation into an incident with his ex-GF -- and new head coach Hue Jackson had been publicly lukewarm on the idea of keeping Johnny around.

As for Manziel ... he's seemed completely unaffected by the career uncertainty, hitting up hot spots in Miami, Vegas, and L.A. all in the last month and partying with the likes of Scott Disick.

It's been reported up to three teams are still interested in subsidizing Manziel's club hopping ... and he told TMZ Sports he's completely dedicated to football ... so we're guessing this isn't the last we've heard of him.