I would not say thingie but the rest of it is pretty much a conversation with me, about something I am extremely interested in. Speech impediment is a good description for it. It's has to be related to turrets or something, because it is ingrained and habitual, but yet in monologing (generally learned speech) I don't have the issue.
You learn language by listening to others. If a lot of your friends say "thingie" in regular conversation, you will too. It's how language adapts and evolves.
Remember, language is just a more refined form of making random noises. (Also, think about how easy it is to remember the lyrics songs you've listened to over and over again. The imitation part of your brain is very strong.)
Right, I think I did a bad job of conveying my point, which was monologing is generally not a natural way to speak, therefore most people learn to monolog and can go into that mode, same with reciting, though it is less of a conscious act, reciting is a form of learned behavior and therefore has events and patterns that you can draw on to reproduce ans suppress impulsiveness, at least for me that is how it works. With spontaneous dialog, again for me, it is less structured, and is more thought oriented, I therefore seems to bounce around more in that particular situation, more than other more unnatural and therefore learned forms of speaking. The "like" I most definitely picked up as a learned word from my environment (a surfing town), the fact that I use it as conjunctions and commas, I think is my own doing.