D-10 is a club in Reykjavík. It refers to classic Icelandic film. In one scene of the movie that happened in a club, at one moment everything went silent and some guy screams "PARTY AT DÚFNAHÓLUM 10". And little bit later the house got filled with random people and it was the party of the century. But of course this street address "Dúfnahólar 10" doesnt excist, but the club was named after that.