A “Showerthought” is a simple term used to describe the thoughts that pop into your head while you’re doing everyday things like taking a shower, driving, or just daydreaming. The most popular seem to be lighthearted clever little truths, hidden in daily life.
How do you know that this thought didn’t pop up in my mind when l was having a shower ???
Because it very clearly came to you as you were looking at downvotes on some nonsense you posted.