That's Life' (4 letters) The crossword solutions for the term 'Classic Catchphrase' are 'DOH' (3 letters) and 'THAT's Life' (4 letters). 'DOH' is a catchphrase made famous by Homer Simpson from the long-running animated sitcom The Simpsons. It is used to express frustration, surprise, or resignation. 'THAT's Life' is a phrase used to express acceptance of the ups and downs of life. It is often used as a response to a difficult situation or an unfortunate event.