Could This 1984 LMC Have Happened At The Mint?

It's PMD. It was flattened somehow. Whatever cause it made it out of round and misshapened.

No, as mentioned above it is a PMD. Ultered coin using a hammer.

I'm thinking a trolley / train penny. When you put cents on the tracks, sometimes they come zipping out before they are completely crushed. I would guess something with a lot less weight than a train. Or just some sort of smooshing machine like rollers.

Yup! My buddies and I were doing that near a train station where they were moving around a lot of cars. Most of the cents got crushed flat, just like the trolley coins that my grandma showed me from her own childhood. Then, with a loud ping, one came zipping out like a slingshot and went ricocheting off down the stone bed under the rails. Some of the younger kids thought that was rad and wanted to do it some more, but when I saw how fast that flat piece of metal was moving, I had the epiphany that what we were doing was actually pretty dangerous (aside from the running out to the tracks and clambering up the stones whenever we saw trains coming so we could line up cents on the rails). We probably wandered off to play a less hazardous game like whiffle bee.

No.

Agreed, PMD.