King of Rosslyn Share definition Flag The King of Rosslyn is someone that is all knowing about the city and area of Rosslyn. Man that guy knows where a mailbox is he must be the King of Rosslyn. King of Rosslyn by Lowly Subject of the King July 31, 2007 0 0 Get merch Get the King of Rosslyn mug. Buy Now — $32.95 See more merch
