I just finished a book where one of the main characters used malapropisms. Mondegreens might be my next literary trick!
mondegreen MON-di-green, noun:
A word or phrase resulting from a misinterpretation of a word or phrase that has been heard.
Mondegreen was coined by Sylvia Wright, US writer, from the line ‘laid him on the green,’ interpreted as Lady Mondegreen, in a Scottish ballad.