mong1
/mɒŋ/noun British informal, offensive
A person who is stupid or who has learning difficulties.
Origin
1980s: abbreviation of Mongol (sense 3 of the noun).
mong2
/mʌŋ
/noun Australian /NZ informal
A mongrel.Some of the people I work with are complete mongs....
- He perused the annoyance that had arrived: ‘Oh, it's that mong, Otto.’
- Shut up you stupid mong and just order the service
Origin
Early 20th century: abbreviation.