What is the gold bite test?

Excuse me, could you please clarify what exactly the "gold bite test" entails? I'm curious to understand its significance and how it's used in the realm of finance, particularly within the cryptocurrency industry. Is it a method for verifying the authenticity of gold or does it have a more metaphorical meaning in relation to investments? I'm eager to gain insights into this concept and how it might be relevant in today's market landscape.