What the heck is a "greenhorn"?
It is an English word used to describe that someone is new. In short, someone who is a beginner and someone who still doesn't know the basics.
Hi everyone! I'm a greenhorn and I am enthusiastic to learn more about cryptocurrencies and how it works.
Welcome to the forum. You can learn more about cryptocurrencies by reading more threads here in bitcointalk but I strongly suggest that you focus reading threads on bitcoin discussion, altcoin section, speculation and speculation(altcoins) section to get the gist of what cryptocurrencies are and how it works.