Thats just how they pronounce it. Im from Buffalo, NY i used to say it that way until i found out it was like a racial slur. I would think Com knows that it is also.

the only thing i can think of is that he was using it in the context of the song. The Corners in a way an attempt to get some street credibility back from everyone he thought was soft so using terminology that cats in the hood would associate with would be the way to go. But i can understand u being upset.