1 definition by The loch monster
adj. Very stupid or foolish.
Pronounced "on gau" (The 9 is pronounced in Cantonese)
Cantonese slang used mainly by young Hong Kong Chinese. First originated on the Internet (isn't everything) but soon spread to everyday speech.
Originates from two words:
The first part "on" comes from "On ghuy" - a cantonese slang word meaning foolish.
The second part "9" comes from "gau" - a cantonese slang word meaning penis.
Also used as part of the phrase "on9 zai" meaning foolish man/boy.
Pronounced "on gau" (The 9 is pronounced in Cantonese)
Cantonese slang used mainly by young Hong Kong Chinese. First originated on the Internet (isn't everything) but soon spread to everyday speech.
Originates from two words:
The first part "on" comes from "On ghuy" - a cantonese slang word meaning foolish.
The second part "9" comes from "gau" - a cantonese slang word meaning penis.
Also used as part of the phrase "on9 zai" meaning foolish man/boy.
Dude 1: Wow, that silly mainlander squatting on the pavement looks so damn on9.
Dude 2: Shut up, you on9 zai.
Dude 2: Shut up, you on9 zai.
by The loch monster August 9, 2006