Verb
drink the Kool Aid (third-person singular simple present drinks the Kool Aid, present participle drinking the Kool Aid, simple past drank the Kool Aid, past participle drunk the Kool Aid)
Alternative form of drink the Kool-Aid
drink the Kool-Aid (third-person singular simple present drinks the Kool-Aid, present participle drinking the Kool-Aid, simple past drank the Kool-Aid, past participle drunk the Kool-Aid)
(chiefly US, colloquial, derogatory) To come under the influence of a leader, organization, or movement to the point of believing uncritically in an espoused idea or ideology.
drink the Kool-Aid