Related:

• Homer: Well, time to go to work. Homer's brain: Little do they know I'm ducking out early to take the Duff Brewery tour.
  Homer: Roll in at nine, punch out at five, that's the plan....
• Guide: Welcome to the Duff Brewery. Well, I'm sure that all of you have heard the rumors that a batch of Duff was contaminated with strychnine.
  Tourists: No. Strychnine? That's news to me. Guide...
• The man never drank a Duff in his life.
  -- Homer watches the Duff Beer commercial from 1960 featuring Nixon, "Duffle...
• It's a touchdown for halfback Dan Beer-dorf! Duff Dry has won the Duff Bowl! -- "Lisa the Greek
• Homer: {Mmmmm, Gummi Beers.} [eats one] Hey, Barney, I think you've had enough.
  Barney: [lying on a bench under one of the beer taps] Are you crazy?...
• Barney: Hey Homer, didn't you say that if Duff Dry wins [the Duff Bowl], your daughter loves you?
  Homer: Not Duff Dry. Washington! Barney: Okay, okay....
• Doctor: Only Duff fills your "Q zone" with pure beer goodness.
  [the letters G-O-O-D-N-E-S-S tumble down into the "stomach....
• Bart and Lisa talk simultaneously] [Bart pulls back the covers] [Homer looks grotesquely sick] Ba
  Oh, man, Dad's dead. -- Can we still go to Duff Gardens?, "Selma's Choice...
• PI seconds is a nanocentury. -- Tom Duff, Bell Lab