jm9 

It's a Cantonese slang meaning "What the fuck are you doing"
Used in Hong Kong
Pronunciation: "Jo Mud gau" (gau is "9" in cantonese)
It's the abbreviation of " Jo Mud gau", therfore, it's "jm9"

Hong Kong's official: When I said ok, it's ok
citizens: he jm9

jm9 by hkcanto December 29, 2018

JM9 

jm9=jo mud 9 (gau)
It's a new net language in HK Cantonese means that ''da fuck r u doing?''

jo mud means what's going on/happening?

9(gau) usually means dick, but in here it refers to tf

A Chinese tourist was traveling in HK,and suddenly he shouted in the street: Hong Kong belongs to China!

Then two Hongkongers passed by,
Hongkongers A: Diu...jm9?
Hongkongers B: Who cares! he's on99.

JM9 by Mr.Lau January 13, 2018

jm9 

A term used in Hong Kong which asks people "wtf are you doing."

Nicholas is watching porn.
Roy: JM9?

jm9 by myworldbox February 3, 2018

JM99 

hottest man ever

JM99 is the hottest man ever holy shit

JM99 by JM99 Official October 2, 2023