Who is Hodler?

So, I've been hearing the term 'Hodler' a lot lately in the cryptocurrency circles. Can you tell me, who exactly is a Hodler? Is it a specific person or a term used to describe a certain behavior or mindset in the world of crypto trading? I'm curious to know if being a Hodler has any advantages or disadvantages, and if it's a strategy that all crypto investors should consider adopting. Additionally, I'd like to understand the origin of the term and how it's evolved over time in the crypto community.