I actually got this from a Dork Diaries book (3 1/2), and there was this section where you write a rap and have a pen name. There, it had this thing where it suggested you add MC or LIL to your name to sound cooler. Since my initials are M and C, I added them up together to create my pen name, mclil1. (The one was originally a typo, but it just stuck)