malapropisms

/M AE1 L AH0 P R AA0 P IH0 Z AH0 M Z/
noun
  1. 1

    The blundering use of an absurdly inappropriate word or expression in place of a similar-sounding one.

    โ€œThe script employed malapropism to great effect.โ€

  2. 2

    An instance of this; malaprop.

    โ€œThe humor comes from all the malapropisms.โ€

Source: https://en.wiktionary.org/wiki/malapropism, https://en.wiktionary.org/wiki/malapropisms