It doesn't really mean anything because it can regrow. Labor can start right away or be weeks away. Just watch if you have a bloody show or time able contractions.
I know what it looks like, I just don't know what it means when I lose it
Mine came out in quarter sized pieces over a week or two. And it looked like a giant green booger/snot. It's jelly-like and very thick. Some people have blood in theirs as well, however I haven't yet.