Kanye: I'mma need a day off, I think I'll call Ferris up
Jay-Z: Bueller had a Muller but I switched it for a Mille
Meaning: 'Ye references the movie, Ferris Bueller's Day Off, where a teen named Ferris Bueller, skips school for one day to parlay with his friends in downtown Chicago, while also joyriding in his dad's vintage Ferrari. As a wordplay/follow-up to 'Ye's previous line, Jay also references Ferris Bueller, as to say the young Bueller had a Muller moment (i.e. the Franck Muller watch brand). In the movie, Ferris causes an array of complications by ditching school and the Franck Muller watch label's slogan is "Master of Complications." Get it? But, with Jay's distinct style, he would have to switch it for a Mille (i.e. a Richard Mille watch). The Franck Muller brand is the highest tier of class and luxury when it comes to watch labels but Richard Mille is not only Franck Muller's competitor; but it also possesses a more contemporary style than Franck Muller.
Richard Mille 037 Automatic
Franck Muller Giga Tourbillon