Two ideas for annoying things today. Neither will ever be made (by me), but it's fun to think about them occasionally:

• A website which is super SEO-friendly, but completely unusable
• A dictionary where all the definitions are accurate, but unclear (this comes from the dictionary definition of "sycophantic", which is "to behave in an obsequious manner". If I'm trying to explain "sycophantic" to a seven-year-old, don't then make me explain "obsequious")

As an aside, when you have a child, you realise just how many words you use on a daily basis with no problem, that you cannot clearly define. It's a lot. I look up words quite frequently at the moment.