A word used in the West country of the UK derived from the two word term 'get on'.An all encompassing term used to signify surprise, disbelief, encouragement & geddon can also be used as a greeting instead of hello or a farewell instead of goodbye.
Comes from the work armogeddon referring to stinky sweaty person of Armenian decent who denies the existence of deodorant. They can be quickly distinguished by their immense amount of hair, and sweat. They wear white t-shirts and tear off sweat pants with a lot of "bling bling" around their neck. They enjoy smoking stinking and being annoying.
Usually preceded by the word damn.