An MMORPG term describing a situation where you have obtained a large amount of ores to be processed into materials useful for blacksmithing and/or crafting or the like. Having said large amount of ores is pleasing and gives a brief moment of ecstasy known as an "oregasm". It is a play on the word and definition of the word "orgasm".
Fakename145: "Dude, how many iron ores did you collect so far?"
Fakername187: "Tons man, I had such an oregasm!"