DuckCorp Dico

Found one definition

1.                 From The Free On-line Dictionary of Computing (19 January 2023):
                   
   
   
                   
                     
   WonderPop
   WPOP
      <language> (WPOP) An implementation of POP for the PDP-10
      made by Robert Rae <rhr@aiai.ed.ac.uk> in Edinburgh in 1976.
      WonderPop used "cages" for different data types and
      introduced processes, properties and some typed
    identifiers.
      (2016-12-24)