Introductions - What or Where is Onederland?

So I am new to 3fc, and I spend a lot of time reading through the forums. I can sense the excitement every time someone reaches ONEDERLAND. At what point are you in Onederland, and what other weight loss jargon do I need to know?

Onderland is that magical place where you step on the scale and there is finally a "1" before your number :) Most people celebrate at 199

Oh, and welcome!

That makes total sense! I will definitely be excited when I reach it.