mong
Ⅰ
noun
1
a fool; used as an all-purpose insult. Abbreviated from the offensive usage of 'mongoloid' (affected with Down's syndrome) UK, 1996.
2
a dog of mixed breed. Shortening of 'mongrel' AUSTRALIA, 1903
Ⅱ ⇨ mong; mong out
verb (of drugs) to intoxicate; to become intoxicated. Derives from the conventional sense of 'mongol' (a person affected by Down's syndrome, also meaning 'a stupid person') UK, 1996