i. a wannabe. A guy who thinks his arms are bigger than they are. a guy who will suck up to his girlfriend and will take up a sport like snowboarding to seem cooler than he is.
ii. someone who spends hours trying to look like a babe.
iii. a guy with really awful hair.
iiii. a douche
iiiii. a girlfriend stealer.

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.