Talk about a nasty split!

Wiz Khalifa just unleashed a nasty twitter tirade directed at his former wife Amber Rose after a fan suggested the rapper try to "get his wife back", and it certainly seems like the opposite of an amicable divorce.

"A woman who would do something to a kid to spite that kids father is a foul creature. Seen my boy. All is well," he tweeted in reference to an unknown incident that occurred with son Sebastian.

"That’s pretty much the only thing that can spin my universe out of control…Sucks when people try to use that against you but the cool part is figuring out how much self control you have," he added. "As long as he's playing and smiling i'm cool. can't be pissed when i see that handsome face," he concluded.

It sounds like there is a custody war under foot!