To completely and utterly lose control of sanity, and the world around you, you are so filled with rage, everything becomes a blur of red; To publicly show your disgust towards something very minor and threaten to leave forever and never come back, only to be gone for maybe fifteen minutes. Originated from the character Vance, who was known for being very short-tempered and frequently lashed out at the littlest things.
Person 1: Did you guys see Beowulf earlier?
Person 2: Yeah, StickMUD crashed and he lost the precious, he suffered a very serious vance out. He might very well never be the same again.