Hanson wrote refuse into confused in his homework, but he was confused when he typed refuse, and he typed confused instead. Now we're more confused than him.
My friend wanted a piece of paper to draw on, in exchange he would give me 3 dollars but l confused him.
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).