Rapper NBA YOUNGBOY Disrespects His BABY Mama . . . Brings His NEW GF To Her House . . . Calls Her 'UGLY' And Threaten To SLAP HER!! ('You Ugly But My Baby Cute')


The 18-year-old rapper NBA YoungBoy is out of control. Earlier in the week, he was seen JUMPING one of his fans at a concert - now this.

A new video shows the rapper at his BABYS MAMAs house . . . and he brought his new girlfriend. If that's not bad enough, he DISRESPECTS THE HELL out of his baby's mama.

And when she fights back, he threatens to ABUSE HER. Watch: