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.

#SouljaBoy calls his mother a crackhead and says his brother is looking for a come up (view previous post)

A post shared by The Shade Room (@theshaderoom) on Mar 13, 2017 at 10:14am PDT

Here's a tweet he didn't delete:

New interview coming soon clearing all these fake ass stories up. Love y'all

— Soulja Boy (@souljaboy) March 13, 2017