This week I learned that British English uses “frown” to mean eyebrow/forehead crinkling/scowling, vs. turning a smile upside down, and friends, MY MIND IS BLOWN.
@lexfri Wait. What exactly was your mental image of someone "frowning upon" something, then?

@caioxavier :(

Well, in truth, if something is frowned upon, it’s not seen as approved/okay/welcomed. I didn’t have a physical face associated with “frowned upon,” but if I DID think of one … it’d be the :( face.

@lexfri That's interesting. "Frowned upon" has always elicited me the mental image of someone in a corner frowning their eyebrow in disapproval of something someone else is doing.