By Sowmya Krishnamurthy

Azealia Banks and Nicki Minaj appear to have exchanged a series of tweet jabs against one another over the past two days. On July 30, Nicki sent out a cryptic "#ManTheseBitchesDelirious"  to an unnamed target. Azealia responded with "Did you mean... "delusional?" ... Delirious was the wrong word. @nickiminaj ...." a day later.

Banks then continued with a string of tweets, no directed per se at Nicki, but apparently thinly veiled references to the Barbie. "Use good grammar when insulting others," and "I don't believe "Rap game" hierarchy ......... Sorry."

This comes on the heels of news that Azealia declined an offer to tour with Nicki. Some speculate that the refusal on the part of the more junior Banks was disrespectful. “I got invited to tour with Nicki Minaj in Europe but I can’t go because I have to finish my album during that time," tweeted a disappointed Banks. Nicki Minaj has already announced that fellow YMCMB artist Tyga and British singer Misha B will be joining her on the upcoming UK tour run.

The always-outspoken Banks is working on her debut LP Broke with Expensive Taste and was recently named as the face of Alexander Wang's new fall collection.