Thank you for your consideration of us Jills in the room, you crack me up

So the song goes somethin like this:
All around the mulberry bush, the Monkey chased the weasel. The Monkey thought twas all good fun til POP goes the weasel. A penny for a spool of thread, a penny for a needle, thats the way the money goes! Pop goes the weasel!

I have no idea what it means, LOL. But it's a fun little ditty to sing. maybe it's about a monkey overspending during mania? and he's horny trying to get with a cute little weasel, but she pops him in the nose?