Only slightly tangential, have you come across the term eggcorn[1] before?

I always get a chuckle out of thinking about it.

1. In linguistics, an eggcorn is an idiosyncratic substitution of a word or phrase for a word or words that sound similar or identical in the speaker's dialect (sometimes called oronyms). The new phrase introduces a meaning that is different from the original but plausible in the same context, such as "old-timers' disease" for "Alzheimer's disease". - https://en.wikipedia.org/wiki/Eggcorn