Definition of drink the Kool-Aid in US English:

drink the Kool-Aid

phrase

informal
  • Demonstrate unquestioning obedience or loyalty to someone or something.

    ‘his real ire is directed at the news media for drinking the Kool-Aid and not being tougher on the president’
    • ‘A lot of the press also drank the Kool-Aid in the first year.’
    • ‘The fact of the matter is that virtually every employee drinks the Kool-Aid and keeps their mouth shut publicly when still on board.’
    • ‘I'm not drinking the Pentagon Kool-Aid.’
    • ‘As someone who is employed, I don't drink the Kool-Aid of my very well-known boss.’
    • ‘If you can't see the bias in almost every news organization, then you're probably drinking their Kool-Aid.’
    • ‘It is strange that after he accuses his opponent of having "drank the Kool-Aid", he then complains that they call anyone who disagrees of being a bigot.’
    • ‘There were times during that bad week when the four of us were thinking that we were drinking the Kool-Aid and not getting the whole picture.’
    • ‘In other words: everyone had drunk the New Economy Kool-Aid.’
    • ‘When I employed over a dozen employees, most drank my Kool-Aid.’
    • ‘Her sin is that she refuses to drink the Kool-Aid and presses people to provide verifiable facts.’