Amber Rose had a quite a day yesterday, battling the Khardashian clan on Twitter after she criticized Kylie Jenner's relationship with Tyga.

But maybe she should have been taking care of her one-year old son Sebastian instead.

That's the crux of legal papers Wiz Khalifa -- Sebastian father -- is expected to file against Rose, seeking more custody of his son.

According to TMZ, Wiz will accuse Rose of being a neglectful mom because:

-- Amber often stays out all night, requiring that relatives and staff take over -- The family dog eats its own feces and then licks Sebastian's face -- When she wakes up she'll play with the kid for 15 minutes or so and then disappear -- Amber and her mom have a volatile relationship, laced with "shouting matches and vulgar exchanges," which upset the boy. And during the arguments the N word was hurled by Amber's mom

TMZ says he hasn't filed the papers yet, and is instead strengthening his case by talking to relatives and gathering more evidence against Rose.

For the latest Hip Hop tracks and news, follow us on Twitter.