Skip to main content

on lun 7 9 

on9 on stetoid. In colloquial Hong Kong Cantonese, on9 means fucking stupid, while 'on' means stupid and '9' has the same pronunciation as 'gau', meaning dick. on9, therefore, means fucking stupid (adj) or fucking idiot (n). 'on lun 7 9' mean on9 to the extreme: lun, 7, 9 all means dick in profanity in Cantonese in Hong Kong. In general, the more variations of the dick you can cram into describing the same event, in this case 'on' (stupid), the more amplified and emphasized is the meaning.
roommate1: hey what don't you turn down the volume, i wanna get some shit done for midterm tomorrow
roommate2: what don't you go bang your fucking head on the door. (you are) on lun 7 9! (adj)

Upon seeing a mainlander lining up outside the Aston Martin store for hours in the rain to get a new ride so that he can brandish in front of her fellow mainlandish friends back in the mainland, a local hk goes -
random_guy: you see that on lun 7 9 over there? who with a sane mind would line up for an Aston Marin? it hurts both the legs and the wallet. If i'm getting a AM, i'll make the sales treat me like i'm James Bond
on lun 7 9 by No_Hands March 3, 2011
Related Words

on lun 79 

It means damn stupid. An amplified variant of on9
Extreme coarse language.
poison male 1: 'hey'
poison male 1: 'my sister used to work as a sales in...'
poison male 2: 'on lun 79'
on lun 79 by ur father August 24, 2007
it is a common abuse in urdu/hindi. It means "I want to insert my dick in your mother's vagina". Also used to fuck anybody off.
maa lun kidhar mar gya hai sala behenchod..!
maa lun by Aqua055 January 13, 2009
Frequently used in various parts of Britain for a person considered an idiot
"Oh cuz, your brother is a lun kebab innit"
lun kebab by BOBYFUR242 February 7, 2017

ON Lun 99 Sic Bun Chau 

This phrase comprises two part, but it is still following the rules which is Subject + Verb + Object.

It is a very symbolic phrase which invented in Hong Kong 70s -80s and being popular in 90s - 2010.

On lun 99 is the emphasized form of the word on 9. They use lun and double 9 to enhance the word on9. If On 9 refer to the stupidest people, on lun 99 will then express more damage to the receiver, weakening their ability in argue. The reading sound is from bass to treble.

sic bun chau is the second of the phase which indicate a movement. Some people directly translate it into smd. I am not saying they are wrong but more accurately, it is to "Suck the soft/irr-erectional dick". Since people shall not get hard in front of an on lun 99.
Dick: Sorry sir, seems I make this report wrong, I will fix it asap.
Sir (smiling): Its okay, you always on lun 99 sic bun chau.
Dick: Sorry....
Sir: I will find another and you can leave now.

The Siu Lun effect 

When you argue with a person and no matter what argument you made, including logic or reasonable ones, the person that you argue with made it sound like you are the wrong one.
Did you lose an argument without knowing what you said is wrong? It is the Siu Lun effect