n.
A transportation device with two wheels (bicycle, scooter, etc.).

adj.
Someone who rides a deucewheela for sport (BMXer, extreme scooterer, etc.).

a phrase chiefly used in northern England.

it is a contracted form of "it'll be reet", where "reet" means "alright" or "OK".

living your life according to "be reet" is the only way to find happiness in life.