Is this true or not, Duff?
Welcome to the Duff brewery.
We're going to Duff Gardens.
Time to go to Duff Gardens.
A lifetime supply of Duff beer.
Duff, the official beer of NASA.
Duff wholeheartedly supports the designated driver program.
Can't get enough of that wonderful Duff.
You've all been served nothing but nonalcoholic Duff.
Can we go to Duff Gardens this weekend?
Homer, are you going to the Duff Brewery?
You must be talking about new Duff Stout.
You can't get enough of that wonderful Duff.
Night gathers, and now my Duff watch begins.
Finally, the Duff reached Tahiti,
It is Duff's lowest peaking single there.
King Duff, for dealing with witches.
The man never drank a Duff in his life.
Duff, the beer that makes the days fly by.
And Duff and all the other peasants are here.
We got a Malaysian beer that's better than Duff.
Like Duff Stout, the beer that made Ireland famous.