No, I've heard of it though. Probably one of those things that sounds a bit crazy, but is actually very good. Like a peanut butter and banana sandwich on soft, fresh white bread.
I have made the Elvis sandwich a few times. It s death by sandwich but it is really good. If I remember correctly, it’s peanut butter, sliced bananas, honey, on soft white bread, and then fried in butter in a pan. At least do it once.