A term used to try and deflate the ego of that big-headed friend of yours
Chavtastic Boy 1: "Yo, bruv, there's no 1 better at Fifa 11 than me, no 1"

Chavtastic Boy 2: 'Oi, reduce your head boi, you ain't that good'
by ducky2410 October 27, 2010
Get the Reduce your head mug.