It seems like you're referring to "Un-Go" — a term that could be a mix of "un" (meaning "not" or "un") and "Go" (a common term in many contexts, such as "Go" as in the board game, or "Go" as in "Go to" or "Go with"). However, there is no widely recognized or standard "Un-Go" in English or in any major cultural, technological, or linguistic context.
If you're referring to something specific (like a game, a concept, a person, or a phrase), could you provide more context? That way, I can give you a more accurate and helpful response.