Vulgar
Used in Hong
Kong
Pronunciation: "on-gau" ("on" in English, "9" in
Cantonese)
Meaning: stupid, thinking stupid
More: on99
Chief Exceutive Mr.Tung: If China is good, Hong
Kong will be good. When Hong
Kong is good, we are good too.
Citizen A: He's on9.
Citizen B: He's on99.