The alien impersonator was me all along!‌ HAHAHA!!!

I mean, seriously, I am not a native English speaker, but even with my weird English accent, it only became weirder if I try to speak fast while keeping the emphasis on that 't' at the end of "hot". My native accent also probably lends to that glottal stop taking over the 't' and merging it with the upcoming 'p' sound. It also helps that the two sounds (glottal stop and the bilabial 'p') are on opposite sides of my mouth, so I‌ can quickly sound them in succession. The end result sounded to me like an exaggerated "posh British" rendition, as if the alien watched way too much‌ BBC before invading Earth.

It just sounded way weirder than I otherwise would be. I can't really describe it.

Are you the alien? Nobody calls a potato for eating hot potato... If you're eating a potato it's going to be hot. Hot potato is referring to the game where you pass something along very quickly. It's saying you're all passing something along that no one wants to get caught with or stuck with, and it's almost never literally, it's usually taking about a responsibility being passed or something like that.