Everything is possible. But this is a common drive thru "prank" in at least the northeast of the USA, I remember it being all the rage when everyone got drivers licenses.

Yes that happened, and yes we could tell the difference. Drunk people were pretty obvious. As long as they didn't throw up I was fine with them, because again the $7/hour employee would have to clean it up

Or just aren't into brands or burgers, but remember a name they liked once.

Or just a brain fart.

Yeah someone like me, who for the longest couldn't remember what "mcbullshit" name they had for the burger I wanted, so I ordered "two of those dollar burgers" until they raised the price and I had to learn the word "McDouble," ugh lol.

Maybe it's someone who just absolutely can't be bothered, like "let me get one of those whoppers or whatever the fuck, it's all the same."