duck soup; noun something that is easy to do or accomplish: Fixing the car will be duck soup for anyone with the right tool Duck Soup – A 1933 film starring the Marx Brothers in which Rufus T. Firefly (Groucho Marx) is named president/dictator of bankrupt Freedonia and declares war on neighboring Sylvania over the love of wealthy Mrs. Teasdale. An hour and 8 minutes of nonstop puns. If you’re familiar with the …
