kuresu writes:
So when he accuses you of drinking their kool-aid (a powdered drink mix in the states that is really quite crappy), he is simply using a derogatory phrase.
Well...to be even a bit more specific...when Buz refers to drinking the kool-aid (which I agree is quite crappy), he's relating the drinking of the beverage to the 1978 Jonestown mass suicides/murders, in which the followers of Jim Jones (leader of the Peoples Temple Agriculture Project, located in Guyana) drank a beverage (purported to be kool-aid...but it actually was not) laced with cyanide (along with a few others "additives"). There's no need to go into the details as to why this happened, as it's off topic, but thought you might like to know why Buz uses the term "Drinking the Kool-aid". He's basically accusing you of doing what your told to do by an "Authority figure", and drinking the poison without asking "why", or refusing to think for yourself.