Learn how to say Malapropism correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word malapropism:
the mistaken use of a word in place of a similar-sounding one, often with an amusing effect (e.g. ‘dance a flamingo’ instead of flamenco).
mid 19th century: from the name of the character Mrs Malaprop in Sheridan’s play The Rivals (1775) + -ism