Soulja Boy Goes In On His 'Crackhead' Mom

Soulja Boy's family drama is getting really ugly.

It started when his younger bro John Way brutally smacked SB with the diss track 'Overdue.'

Among the track's accusations is that their mom is on welfare -- something she confirmed last night.

That was all too much for Soulja. This morning he tweeted and deleted a rant in which he called his mother a "crackhead" and claimed she once blew $100,000 of his money in a week.

He also threatened to slap John if he sees him, and continued to brag about how rich he is, contradicting John's lyrical claim that everything the cash poor Soulja "owns" is really rented.

Here's a tweet he didn't delete: