Best thing flopping is a term used to describe a situation in which something that was expected to be successful fails to meet expectations. This can be applied to a wide range of situations, from business ventures to personal relationships. When a best thing flops, it can be a major disappointment, but it can also be an opportunity for learning and growth.
There are many reasons why a best thing might flop. Sometimes, it is simply due to bad luck. Other times, it may be because of poor planning or execution. Whatever the reason, it is important to remember that failure is not the end of the world. It is simply an opportunity to learn from your mistakes and try again.