use malapropism in a sentence.
While not exactly the same, malapropisms are interesting too :-)
It's not funny unless it's a malapropism.
The latter two are examples of Mondegreens (or eggcorns):Actually, reading the article, it seems to make the distinction that those would be malapropisms instead:
It's a term that originated out of something of a malapropism by Gore Vidal at a Democratic National Convention, made speaking of William F Buckley Jr.
Just a note, "Bushisms" are properly "malapropisms".
One of my pet peeves is people who say "reign him in," a malapropism seen with increasing frequency where "rein him in" is what is actually meant.