I have enjoyed doing the daily Explainle.org for the last couple of days. It triggers some of the fun bits of language for me. 🙂
The twist compared to straight up “the opposite of this” is that there are “forbidden words” that you’re not allowed to use, and only 100 characters.

Luckily for me, it’s relying on an LLM and is therefore quite nerdy, so I can explain it in language I understand