Because Asians pronounce Ls with an R sound. The door marked "Supplies," opened to the Asian people saying either, "Surprise," or "Suppries."
It's better with audio. I recommend watching the whole movie.
Deck the harrs with bars of horry.
Fa ra ra ra ra ra ra ra ra.
Tis the season to be jorry.
Fa ra ra ra ra ra ra ra ra.