👉 Spiffing is a slang term that is commonly used to describe someone who appears to be dressed up, pretentious or overly formal. It is often associated with individuals who are trying to impress others or appear to have a certain sense of style and sophistication. While it can also refer to the act of wearing spiffy clothing or accessories, in this context, it is more commonly used to describe someone who is deliberately dressed up for an event or occasion.