A statement of surprise, annoyances, joy or any sort of emotion you can think of. That refers to ones ball sack at the same time.
"Oh my sack that lion just attacked that guy."
"Oh my sack the item of 1337 uberness dropped!"
"WTF is that noob doing... Oh my sack!"
"Oh my sack the item of 1337 uberness dropped!"
"WTF is that noob doing... Oh my sack!"
by War bastard of the eastern lands March 11, 2008