Beelzebub has a devil for a sideboard
Misheard version of 'Beelzebub has a devil put aside for me', from Queen's Bohemian Rhapsody. Some mondegreens are invented rather than misheard. I know this one is genuine because for years I heard it that way myself. I don't know why it never occurred to me that it made no sense. I still prefer the sideboard version to the correct lyric.