It's named after the marketing logo on the back and sides of some unreliable "stellantis" vehicles.
I know all about the combustion chamber shape, but this hemi thing has become purely a marketing tool at this point.
Like "TRD". What seller would brand their products with the word "turd"?
Second? Sheeyit. I'm 72 and well into third and fourth screen viewing. Mostly at work. The spreadsheets and PowerPoint crap just don't hold my fascination like the trailer park boys, Star Trek, or clash golf.