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.