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on lun 7 9 

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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 

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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

maa lun 

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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

lun kebab

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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 

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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 

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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
More from Urban Dictionary

Overstand 

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To understand a topic or statement to the highest extent.
Leroy, after being told the tenth time by his sister, did overstand her idea of robbing the 7-11.
Overstand by Elf Eater March 23, 2003
Word of the Day on August 20, 2026

minimap 

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A map that mostly tells you where everything is
Friend 1: Follow me there is a player nearby
Friend 2: How do you know?
Friend 1: Minimap
minimap by LeWord January 13, 2015
Word of the Day on August 19, 2026

Pink Cloud

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12 step recovery jargon referring to someone new who talks about how great life is, now that they're sober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.
Pink Cloud by toniwithaneye November 24, 2006
Word of the Day on August 18, 2026

Dotard 

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An aging individual who has long lost the ability to make rational sense.
That dotard is going to get us all blown up, if he doesn't calm down .
Dotard by anonymous September 22, 2017
Word of the Day on August 17, 2026

Chancla

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The deadliest weapon known to a Latin kid; a flying slipper/ flip-flop.
My mom hit me with a chancla.
Chancla by TardisBae October 31, 2014
Word of the Day on August 16, 2026

Striver 

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The striver is an interesting phenomenon that is seen across college campuses. In essence, the striver is an over-achiever who comes from a working or middle class family. He may be an immigrant. He may have been a slacker in HS who was "born again" into an academic wunderkind. Or he may just be an over-achiever who is keeping at it.

The striver is willing to sacrifice his social life at the expense of Phi Beta Kappa and Summa Cum Laude. The striver is the guy who stays at the library long after you are gone. The striver is the guy who takes 30 credits/semester and considers anything below an A/4.0 failure. The striver doesn't work on campus, he is too busy finding ways to pad his resume instead of working retail or workstudy. The striver lets his grades pay his education by applying to ten scholarships a year.

The striver is a future Soros/Fullbright/Rhodes/Gates/Marshall/etc. fellow. The striver lives to study. For the striver, their fun comes from the rewards they expect to receive in return for their diligence. Be it Law School, B-School, academia, or politics. The striver seeks to find the American Dream through academic success.
Anthony was a striver. He transfered from a TTT to an IVY and graduated in 2 years. He studied his ass off and went to Penn Law. He got a Biglaw offer. But lost it all because of an unmoderated mesasgeboard.

Successful strivers:
- Barack Obama
- Harold Koh
Striver by URM Striver January 3, 2009
Word of the Day on August 15, 2026
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