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It means 'crazy' in the Chinese dialect of Hokkien.
Don't siao!

Fucker ratted out on me! Siao liao lah
siao by Soon June 1, 2004
Words you can keep
Siao is the most talented person you could meet. Also one of the funniest people you’ll know in your lifetime. Usually having the most beautiful and radiant skin complexion. She has a big heart yet many people hate her because she got more going for herself than they do. The best part is that she doesn’t care at all. She glows in and out of the sun and is super beautiful, beyond bad. She’s rare. If you come across one which is least likely, you HAVE to wife her.
Hater 1: “The Guy I like is in love with siao, she thinks cause she’s talented everyone wants her.”
Hater 2: “SAME. Ugh I wish I could be in her shoes.”
Siao by Everyhandleisout September 15, 2018
Related Words

siao eng 

A powerful gang lead by a charming prince who stays in the land of woods. Hes single and available by the way.
Siao eh, wanna join my siao eng gang not?
siao eng by Xiao Eng Gina February 4, 2022

siao za bo

means a crazy woman, say it to guys whom you are irritated at to get the best reaction :)
Friend: *keeps kicking your chair from behind*
ME: "siao za bo!"

Friend: *cries and reports me to the teacher*
siao za bo by wahoo69 April 15, 2022

Dee Siao 

你要怎样dee siao他?
叫猪肉lah... 他就不吃啊。
Dee Siao by LimPei February 25, 2010

kee siao 

The teacher almost kee siao after marking all the ridiculous answers.
kee siao by Nahte79 June 24, 2016

bozo stupid ass bogay siao chicken nugget 

the most extreme insult of all time, an insult more powerful than the "no u" insult. use these words carefully, as whoever you're directing this to might die a violent, bloody, painful death.

be sure to immediately scream this insult as loud as you can after you hear 'no u' to prevent your own death.
kid: "HAHAHAHAH ur mum gay lol"
kid2: "no u-"

kid: "BOZO STUPID ASS BOGAY SIAO CHICKEN NUGGET!!!!!!!!!!!!"
kid2: *dies in a way too painful to describe. very bloody and messy.*
More from Urban Dictionary

Literally 1984 

Used in response for when someone promotes/advocates an event or idea that is perceived to support "too much" authority and/or government control.

Often used jokingly as a over-exaggeration in political talk.

Can also be used in response to a ban or mute in a forum site or online chat.
Steve: I think that the government should regulate businesses more
Bob: Literally 1984!

--User1 has been permantly banned--
User2: You cant ban my friend like that! Literally 1984!
Literally 1984 by ke1 July 7, 2021
Word of the Day on September 1, 2026

Back when I lived in upstate new york 

A meaningless, unimpressive, self-serving introduction. An indicator that the story about to be shared will be pointless and dumb.
Back when I lived in upstate new york, I also had to park on the street - on two occasions, we got enough snow, mixed with just the right plowing, that my car was lifted off the ground from so much snow being jammed underneath it.
Word of the Day on August 31, 2026
Acronym, meaning Too Long Didn't Understand
Similar to TLDR
Sister: This meeting was to discuss the rough draft of my essay, where we discussed the subsidiary questions I added in my rough draft. We also discussed the relationship between my main title and the real-life situations I chose to use in my essay. We discussed the structure of my essay as well, specifically the Math AOK section and how it relates to the contradiction of the title. This second meeting was particularly helpful in discussing the implications of my essay claims and how to apply the title across various areas of knowledge. There were many sections of the essay that could have been cut down in wordiness and the ways of knowing required further and more in-depth analysis.

Me: Woah! TLDU!
TLDU by L-Evans January 14, 2019
Word of the Day on August 30, 2026
the act of having anonymous sexual encounters with other men in public toilets.
Cottaging by greeef April 24, 2003
Word of the Day on August 29, 2026

Salad Days 

green inexperienced youthful judgement and cold blooded execution of those judgements.

Rashness with little concern of consequence.

Antony and Cleopatra. William Shakespeare

"My salad days,
When I was green in judgment, cold in blood."

- William Shakespeare, Antony and Cleopatra, 1.5
"How did you end up in jail?"

"Salad days, 'nuf said."
Salad Days by GilbyRFC0 October 7, 2011
Word of the Day on August 28, 2026
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