A slang word for any joke black singing group. Probably came from the black Wiggles (the popular young children's band). Is thought to have stemmed from a small African child named Mig G_____. The first Miggles were really good. They wore different colored polos with Mig's face on them.
In context, can be used to make fun of terrible rappers (such as DJ Techrosity).
Terrible TJ "We crank dat justice league..."
Random guy whispers to friend "Man, those some Miggles".
Other friend "Sike! He's not nearly good enough to be a Miggle."