That's a tricky one! "69cuan" isn't a familiar word in any widely used language I know.
It could be a abbreviation specific to a certain industry, or perhaps it's a made-up word. If you could provide some information about where you heard this term, I could try to figure it out. It could be Perhaps turn into rain tomorrow. If you decide to venture out the fresh air, take with you some sunscreen. Lingo Phrase Every online comm