the world and his wife
  1. (hyperbole, chiefly, UK, Australia) Everyone; a great crowd; a jumbled assortment of people.
    The world and his wife were at the opening – we could barely move.
    • 1957 July 4, General Secretary, The Textile Institute, A Guide to Careers: No. 32: Textile Technology, New Scientist, [ page 42],
      The world and his wife are the customers for whom the textile industry supplies the greatest necessity next to food, and some of the greatest luxuries.

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