Everything and nothing, sounds the mysterious but accurate answer. If we think of the game as a bird, then nothing. But the word game also means something else in Hungarian: that’s what the lifting rod of the lifting structure is called.
So, the name isn’t so mysterious anymore, is it? By the way, boom wells were the most common well structures in Central and Eastern Europe for a long time, and in Hungary they can still be seen on the Great Plain. The origin of the boom well, however, can be found outside of Europe.
It was invented in ancient Mesopotamia, sources from there mention it as early as 2000 BC. It probably entered Hungary and Europe from the Far East during the Turkish occupation.