lol what? What Poles do this? And what's the name? I think you're just a bit obsessed with Poland personally dude

Maybe somebody's been pulling your leg to annoy you. Seems to be easy enough to do.
Anyone I've ever talked to has called your country Czechy. I don't even know of any other name for it that exists in Polish. Then again, new slang for the country could have developed that I don't know about, I guess, but I really think people are just making crap up to annoy you and/or other Bohemians.