It's fine, we'll just play with Helen Keller rules. [He immediately realizes he'll need to explain that one, at least.] If you don't understand a card, you can play it on the assumption that the best answer is the one that makes the least sense and if the Card Czar doesn't know what to pick, they can Helen Keller it and pick at random.

[For the record, these are real rules a local group I know plays with abd that is really what we call them because they grew out of an Apple to Apples rule wgere if you played "Helen Keller" as a card, you automatically won. No, I have no idea why.]