Posted by Gary Martin on April 24, 2003
In Reply to: Origin of "beelzebub has a devil for a sideboard"? posted by Mama Mia on April 24, 2003
: The listing in the Mondegreen section of the Phrase Finder does not give a source for the mis-hearing of the line from Bohemian Rhapsody by Queen.
: Could it come from the cover version of B.R. done by the Young Ones? They certainly use the line "Beelzebub has a devil for a sideboard" instead of the correct lyric.
: Of course, they may just have been repeating a popular mishearing, but I am not enough of a Queen fan to know....
: Mama Mia
The source (i.e. myself) is given on https://www.phrases.org.uk/meanings/59850.html
That's the way it sounded to me when I first heard the song. I don't know if anyone else did too so it may not be the origin as such, although it was certainly original.