Strange and exotic foods.

The USA is the loudest nation on Earth. Its culture is presented to the rest of the planet in all forms of media, and has been for the decades that I've been parked in front of the TV. Kids in remote corners of the world grow up watching Sesame Street. I did, and as a result say "Zee" instead of "Zed", which pissed off my English teacher something fierce.
For those that take my jibes, barbs and sarcasm too seriously: I have no problem with that kind of cultural permeation. Far from it. I find it rather fascinating.
It has however led to a few "WTF?" moments. Questions as to what those crazy Yanks are talking about, as there is nothing comparable elsewhere. They're never in regards to anything major. Just little cultural quirks that have never escaped beyond the borders and, as such, are seen by outsiders as a total f**king mystery.

Things like "S'mores".

"S'more" is a word I've heard and read since the 80s.
"Let's make S'mores"
"Can we have S'mores?"
What the hell are you people talking about??!
I'd deduced that it was something to do with camping and, somehow, involved marshmallows. Was this what the Colonials called the practice of toasting marshmallows? How the hell did they arrive at that as a phrase? It never dawned on me as to what a "S'more" really was as no one, in any part of the world I have travelled, has ever sat by a campfire, looked at the marshmallow they're toasting and thought "Y'know what this needs? More sugar."
The blessed saviour of the ignorant, Wikipedia, has finally scratched that trans-century itch. I now know what a S'more is, and can go back to eating my deep-fried Mars bar in peace.