Short for master of ceremonies or mic controller. Essentially a word for a rapper but the term is not limited to hip hop. Drum and Bass, Garage, Happy Hardcore, Ragga and old school rave all feature MCs, however with these genres, the MC generally MCs live while a DJ mixes the tunes, whereas hip hop MCs mainly do so on record

A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.

Master of Ceremonies or Microphone Controller. A rapper who is either the host of an event; someone with enough flow and skill to be considered a master of the art of rap.

Minecraft in short-form

Mic Chief. In Rap and Hip Hop the M.C. is the main rapper in a song.

Mic controller- usually refferted to in underground rap. Mic controller being the one with the mic, rapping.