

Bob’s Your Uncle is a pretty fascinating phrase, because it doesn’t have a clear origin.
The earliest references to it are as a song title, mentioned in advertisements and later in a newspaper review, but neither the actual music or lyrics are known today.
Very soon after this first appearance, it starts appearing in print as a phrase people are using.




I guess it’s kind of like the save icon. Floppy disks have been out of use for so long, that there are adults who have never seen a floppy disk, but know the save icon.