It could be a abbreviation specific to a certain industry, or perhaps it's a neologism. If you could provide some context about where you saw this term, I could try to help. It could be Perhaps turn into a mix of https://stevenlqr534849.blog-gold.com/43218581/that-s-a-tough-one-69cuan-doesn-t-seem-like-a-common-phrase-in-any-popular-language-i-have-come-across