I could've sworn I read that some people did some research on the accent of folks from where he was from and the conclusion was that he did say "for a". Exaggerating it, if you say it like "fer a" then sort of slide from one to the other like "fera" and sort of drop a little enunciation off the end you basically end up with "fer". So to me, I think he said "for a" and that was his recollection as well, but either way the quote is basically entrenched as "for" so I don't really think it's worth trying to fight to correct people. Especially when the argument is so full of weird details, but if you just listen to the clip it sounds like he fucking just says "for" lmao.

I was thinking about a similar thing recently because I got a Star Wars question wrong in trivia. The question was what planet is cloud city on. I said Besbin but apparently it's Bespin. Without looking at the word in a subtitle or knowing what it is beforehand they sound exactly alike as far as I can tell.