Meaning of corporation pop in English:

corporation pop

noun

mass nouninformal Northern English
  • Tap water as a drink.

    ‘just heard folk in London spend £20–30 a month on water—what's wrong with corporation pop?’
    ‘I've told my daughter to fill up her old spring water bottles with corporation pop’

Origin

1950s from corporation, in the sense ‘a local authority’, and pop, in the sense ‘a sweet fizzy drink’ (with humorous allusion to local authorities' management of the supply of water as a public utility).