A term coined by medieval English mothers who used to punish their naughty little children by spinning them round in circles until their voices became ludicrously high and started "MCing", a form of babbling over crappy production.
Clearly everyone else who has posted a comment is a member of the Croydon Rude Boi Brigade. This fool claims to have talent but actually seems to have a fake-lisp that many Rudie's have adopted. I'd be angry that XFM played his music if it wasnt so hillariously bad.