Drink the Kool-Aid: 1. To mindlessly adopt the dogma of a group or company without really understanding why or questioning intentions sufficiently. 2. Reference to an American fruit drink, purported to have been laced with cyanide and given to the followers of the Jim Jones cult at the Jonestown massacre in 1978 (unverified and often disputed); intensely annoying capacity of enthralled staff to parrot the company line; typical examples include a rabid and irrational hatred of any competitive product, an unshaken belief that their product is always the best (despite persistent evidence to the contrary), and an inevitable adoption of all company jargon, even at home and with mates in the pub.