People go *nuts* over this debate. If you’re looking for a simple way to start a playful argument and turn people against each other in (mostly!) good fun, ask what names they have for certain things.

You say "tomato," I say "tom-AH-to;" you say "potato," I say "pa-TAH-to." We can agree to disagree there, but if there's one way to disrupt Thanksgiving dinner, it's a debate over how to pronounce ...