What does OG stand for? 

Og

Og, according to the Bible, was an Amorite king of Bashan who, along with his army, was slain by Moses and his men at the battle of Edrei. In Islamic literature he is referred to as ‘Uj ibn Anaq, one of the giants mentioned in the Qur'an. Og is mentioned in Jewish literature as being alive from the time of Noah up until the time of his death in battle with the Israelites. It is also written in the Midrash that he had a special compartment in Noah's Ark just for him. Aggadah suggests an alternative to this; that he sat upon the top of the ark, riding out the flood for the duration of the storm from this location.

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