Have you ever made up your own word or phrase?

During my teenage years, if someone was acting dumb or a fool I would call them a "wogan". No idea why or where that came from but sometimes it would be "woganator". I would also call people "mandinga" but I stole that from Ace Ventura. When I was working at a group home in my early 20s, I shared this with one of the residents which he thought was quite humorous and started saying it himself. Somehow those two words combined into "woganate the mandinga" during this time. I still have no idea what that means.