The cliche: as a non-American/whoever else eats it kid, I always thought jelly = jello. I can't believe it hasn't been posted in the thread yet really
And then I wondered how the fuck does that work. And then I found out, several years ago, jelly = jam in this case, or at least what we call jam.
We don't have peanut butter here, at least it's not very common - I tried it once and didn't like it. Some people I know do eat regular butter + homemade jam and swear by it. I was never a fan of jam, so I never liked that either.
I'll get the hell out of the thread, I promise.