I'm just at the 21:23point in the video; but, I am hoping the he talks about how bird dog would  kiss lil Wayne in the mouth all the time.

Likely,  he did something  to to Kat's 6 children. He had just got out of prison. Spell retribution 

Oh hell naw! When dude states that what Kat did to him ruined the relationship he had with his grandmother in Ohio, he is  revealing that when he told her what Kat did or was doing to him, she banished  him to the basement! I want to hear him elaborate a bit on that

MsVichy And check it--- please tell me that the patiarch/their daddy not only threw Kat out the house, but ensured that the abused brother got mental therapy.

Dude is saying that Kat is incestuous and a pedophile, who sexually abused him and Malik. Kat put him in an institution with the help of a teacher, to prevent the secrets of sexual abuse.

Where I was born and raised, that long pinky fingernail means something on a male black. It's sus and likely a coke nail. Unlikely it's a tool for opening packages, flamboyant, or a fashion statement.