Playground poetry

JJ has recently learned at school, and taken to chanting at odd moments in the day, an odd little sequence of non sequiturs which comes accompanied by a sort of star-jumping hoppity action:

"Ching chong chinamint
He went to the govvermint
He missed
He missed
He missed like this..."

Yes, that would be "chinamint". Clearly neither she nor any of the other kids chanting this have the faintest idea what it means, it's just a string of interesting nonsense syllables. I wonder what they think a "chinamint" is, if anything? And a "govvermint"? And how exactly does one miss such a thing? This is not a playground meme I ever came across in my own childhood, but it could conceivably be a long chain of half-understandings away from something I once chanted myself. It's moments like this that make me want to be an anthropologist.