Azealia Banks is one person who is certainly not afraid to speak her mind on Twitter, but it's gotten her into trouble on more than one occasion in the past.

Now, the bigmouthed rapper has been threatened with legal action by none other than Sarah Palin.

The argument stemmed from a series of graphic tweets that she posted earlier this week, which were in response to a (now proven as fake) news story that quoted Palin making derogatory comments about black people, such as "negroes loved being slaves".

Pitchfork quotes Banks as tweeting "Let's find the biggest burliest blackest negroes and let them run a train on her. Film it and put it on Worldstar" in response.

Palin in turn posted a statement on Facebook condemning the rapper's "bizarre, violent rants", leading to Banks issuing a lengthy open letter by way of apology/explanation.

However, it doesn't seem to be enough for Palin, who has said in a statement via People magazine that she is in 'discussion with attorneys' to 'put the fear of God' into Banks by suing her.

She wrote: 

"Azealia engages in a form of racism and hate that is celebrated by some in the perverted arm of pop culture, but is condemned by those who know it's tearing our country apart. Others may keep turning a blind eye to problems like Azealia's mouth; I choose to take a stand against it and the double standards that result in her actually being rewarded for her divisive tactics and aggressively inciting violence. ... Let's be honest here: if a white girl were to say what this black girl is saying, the screams for the entire white population's head would be louder than the nonsensical rap that Azealia spews all the way to the bank. The white girl would probably be locked up. ... I think this time I don't just sit back and swallow it, but put the fear of God in her by holding her accountable. As many of you have for years implored me to do, I'm finally going to sue."

Judging by the rapper's response, this one could run and run...