Hosy is an alternative workd for for host and is usually used when talking in online games.

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.

v. adj. Being, or the act of being a fricking hoebag.