Iggy Azalea took her feud with Azealia Banks to a new level on Dec. 18, slamming the rapper as a "bigot" and a "miserable, angry human being" Credit: JB Lacroix/Getty Images; Mark Robert Milan/GC Images

Let it out, girl! After Azealia Banks dissed Iggy Azalea in a radio interview with Hot 97 on Thursday, Dec. 18, the "Fancy" rapper fired back with a diss of her own on Twitter — several disses, in fact.

"Special msg for banks: There are many black artists succeeding in all genres. The reason you haven't is because of your piss poor attitude," the native Australian wrote. "Your inability to be responsible for your own mistakes, bullying others, the inability to be humble or self control. It's YOU!"

Azalea went on to slam her rival as intolerant and weak-minded. "You created your own unfortunate situation by being a bigot and don't have the mental capacity to realize yet. Probably never will," she wrote. "Now! rant, Make it racial! make it political! Make it whatever but I guarantee it won't make you likable & THATS why ur crying on the radio."

She added: "Enjoy continuing to bang your head against that metaphoric brick wall & Savor this attention. I'm the only way you get ANY. You're poisonous and I feel genuinely sorry for you because it's obvious at this point you are a MISERABLE, angry human being. Regards!"

The bad blood between the two stars goes back a couple of years, but was reignited recently when Banks, 23, called out Azalea, 24, on social media. "I just really want to know what your fascination with Black women is....." the "212" rapper tweeted. "Why do you want to act like us? I need to know... Why do you imitate us in such a way that i feel like you are actually making fun of us? Why?"

Banks further elaborated on their feud during her chat with Hot 97 this week, telling the hosts that her issues with Azalea speak to what she sees as a larger problem with race.

"That Macklemore album wasn't better than the Drake record. That Iggy Azalea s--t isn't better than any f---ing black girl that's rapping today," she said. "The Grammys are supposed to be accolades of artistic excellence. Iggy Azalea is not excellent."

She added: "When they give these Grammys out, all it says to white kids is: 'Oh yeah, you're great, you're amazing, you can do whatever you put your mind to.' And it says to black kids: 'You don't have s--t. You don't own s--t, not even the s--t you created for yourself.' And it makes me upset."