What is this?!

I got my belly button pierced around March-April of this year. For about a month and a half or so, I've had this pink flesh/meat looking thing stick out of my piercing. I've tried pulling it out, but no luck. I'm not sure if it's infected because I didn't really clean it as much as I should have when I first got it. I'll admit, I kind of got a little lazy. I cleaned my industrial piercing more than I cleaned this! Anyways, what is this, and how do I get rid of it?!