Yung Berg -- FIRED From 'Love and Hip Hop' ... Over Beating Arrest

Yung Berg has been 86'ed from "Love and Hip Hop Hollywood" ... after he allegedly left his girlfriend cut and bruised from a violent hotel room fight.

VH1 made the quick decision based on the severity of the allegations.

As we previously reported ... Berg and his girlfriend Masika Tucker got into it after he filmed the L.A.H.H.H. reunion special. We're told the fight was over Berg's credit card being declined during a night out on the town.

His girlfriend told cops the rapper hit her and dragged her around by the hair and grabbed her by the neck -- and on Wednesday he was arrested for obstruction of breathing.