Azealia Banks got herself into a little bit of bother this week. 

E! News is reporting that the rapper was arrested early Wednesday morning after she allegedly assaulted a female security guard outside a Meatpacking District nightclub, Up&Down in New York. 

The New York Police Department told E! that around 12.46am, Azealia was escaorted out of the venue "when she became verbally abusive and began to push the victim and bit the victim on the breast causing swelling and redness."

The NYPD added that "she was arrested and charged with assault, disorderly conduct and harrassment."

But what exactly got Ms Banks so riled up that she bit the woman's poor boob?!

A source told E! that the 24-year-old wasn't invited to the party in Up&Down, but arrived as a plus one. 

But when Azealia tried to go down to the party, the security guard turned her away and told her she had to have a stamp to enter. She eventually got a stamp and proceeded into the party but told the other guests that she was annoyed the security guard didn't recognise her as a celeb. 

That's how the altercation started but we're sure there was a lot of drink involved too. Azealia was released on Wednesday evening after seeing the judge.