Noun. Imbecile, idiot. Offensive expression alluding to someone with Down Syndrome, being Mongoloid. Verb. To reach a drugged state where physical activity is minimal and mental faculties are incapacitated. Used frequently within the 'ecstasy' fuelled 'house' scene. Obvious relationship to the derogatory version of the noun 'mong'. [1990s]
MONG
Meaning of MONG in English
Slang English vocab. Английский сленговый словарь. 2012