What is a blue loan?

Excuse me, could you clarify what exactly is meant by a "blue loan"? I've come across various types of loans in my research on personal finance, but this particular term is new to me. Is it a specific type of lending arrangement with unique characteristics, or is it perhaps a colloquial term used in certain regions or industries? If it's a formal financial product, could you elaborate on its defining features, eligibility criteria, and how it differs from other types of loans that might be available? I'm eager to learn more and understand its potential applications in the world of cryptocurrency and finance.