A blood-oath serious person. Death before dishonor Spartan type person that lives and dies only for their ideals, kith, and kin.
Capable of exterminating the enemy ... youngest first, oldest last, ... capable of forgetting past wrongs, but never forgiving.
For peace and happiness, best not to disturb mentally or emotionally, the soulless demon that sleeps within the corps may awaken.
Most appear to be polite, friendly, courteous (please, thanks, ...) civilized people with poor/negligible social skills and a closet blood-lust.

!APPROACH AT YOUR OWN RISK, you pitiful dumb shit!

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.