 In the season four episode, "Duffless", parking lot signs at the Duff brewery have the slogans "It's Always Time For Duff" and "Now Leaving Duff Country".In the first season episode, "Homer's Odyssey", Duff is described as "The beer that makes the days fly by".Their spokesperson is Duffman, a parody of Budweiser's '70s-era mascot Bud Man.