Malapropism – Almost a Tongue twister
Malapropism. What a weird word, and what does it mean?
The definition of malapropism is the usually unintentionally humorous misuse or distortion of a word or phrase; especially: the use of a word sounding somewhat like the one intended but ludicrously wrong in the context (copied from Merriam Webster).
A bit like a mondegreen where the words of a song are misheard and then you go around singing it to yourself incorrectly, with the difference being that the end result is often funny or even hilarious. Like “little miss Muffett, sat on a tuffet eating her turds and whey.”