To go out drinking with the mindset to get completely retarded drunk; To get incredibly intoxicated and not be ashamed of your actions in the process, before, during, or after; As well as to inform others around you as to the state of mind you are or will be in.

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.