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A muon is an unstable, negative particle with weak interactions and a heavier weight.
Karen is also unstable and negative, and has weak interactions with people coupled with a hefty poundage.
Karen: “You think you know everything just because you’re a theoretical physicist!”
Sheldon: “Well in those terms, you’re still a MUON!”
MUON by Streamer151912 March 3, 2021
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Used to describe someone who is shit. From the aristocrats.
You're the muon, you cunt!
muon by Jamie Cassamaty December 23, 2007
Related Words

hitler muon nam

A Vietnamese phrase means "Heil Hitler!"
Ah, someone putted this "hitler muon nam" sign here

Muonline 

A game that consumes your life and eventually decays your friendships to the point where a little kid named julio follows you all over the internet world just so he can be in the same vent channel with you as you play this gay game.

A game that's pointless because it is endless and gives you no true accomplishment in life other frustrating when you're screaming furiously in vent, "OMG a PK just walked up and killed me!"

some examples:

1) Yeah, my friend Julio used to be the star of the party. He also had a hot girlfriend, and a academic scholarship to Harvard. Now, he is in his mid 20’s still living at home always playing Muonline. Almost never hear from him anymore.

2) Friend: hey dude, haven't seen you in ages, wanna hang out on Monday?
Player: yeah sure, can I bring my laptop?
Friend: why?!
Player: got to be in muoline, i cant leave AFK that long.
Friend: right, no thanks. maybe i can see you another day.

3)Non-WoW player: Hey man, you coming to graduation tonight?
WoW Player: And miss the CS?, i don't think so.
Non-WoW player: What about to the party afterwards?
WoW Player: No way! 7pm to 4am is when I hit up LOT, you know that.

James: Hey Julio, want to go hang out with us at the mall?
Julio: No, I have a 2:00 pm CS event. Plus some guildies and I were going to kill noobs at devias s3. I also need to go get 2 more 2 bless to buy my raven lvl 50. And after that I promised some noobies I would help them to kill kundun at k7.
James: Ok... What about tommorow?
Julio: Sorry, I can't. I'm going to LOT , and then right after that I'm going to BC and DS with some guildmates. And after that, I'm going to try and get a Sunlight Armor at kalima 7.
James: Muonline really does rule your life.
Muonline by Elimpune February 16, 2008
the word pre dates the dictionarry
modern deffinition tho is getting totaly twatted
my god i got muonted
you muont monster
fluffy punters muonting muonters!
muonter by nils November 30, 2003
I love Dan, but his sisters a major muonf!
muonf by Danscock March 8, 2022
A province of Vietnam that act as an semi - independent nation (maybe), with characteristics can be compared to the nation of Mexico
1 tỉnh của Việt Nam và đồng thời là 1 quốc gia tự trị (có thể), với nhiều đặc điểm giống với đất nước Mexico

Official province name: Hoa Binh or Bi Vang Thàng Động
Muongxico is a great micro-nation with beautiful nature, language and people. It even has its own flag.
Muongxico by Shibagg January 19, 2026
More from Urban Dictionary
NYC people who migrate north to Quahog, RI to see the leaves in the fall.
New York and everyone from there can fornicate themselves with an iron stick.
leafers by ss++ February 8, 2005
Word of the Day on September 27, 2026

Respectfully 

Precedes or follows either a gratuitously disrespectful or honest remark, originated in New York City. Used in similar fashion to "no offense" or "to be honest," interchangeably.
Ya mans is wild buns, respectfully. Respectfully he's washed.

After school, The Modells on Jamaica Ave was active. Respectfully.
Respectfully by john quan the first December 20, 2020
Word of the Day on September 26, 2026

You met me at a very Chinese time in my life

A moment in time where you feel distinctly Chinese over all other things.
Dante: "I wish I could be Nigerian, but I can't because I'm Chinese. You met me at a very Chinese time in my life."
Word of the Day on September 25, 2026
Adjective. Used to describe persons who have adjusted or altered their lifestyle for environmental reasons. Crunchy persons tend to be politically strongly left-leaning and may be additionally but not exclusively categorized as vegetarians, vegans, eco-tarians, conservationists, environmentalists, neo-hippies, tree huggers, nature enthusiasts, etc.

Also used to describe establishments where alternative foods and products are sold, i.e. natural food stores.

Modified derivative of granola.
"I need more crunchy guys in my life. I'm so tired of dating preppy metrosexual assholes."

"I'm heading out to the crunchy store to pick up some fair trade chocolate and tea tree oil, do you need anything?"
crunchy by EBC July 11, 2007
Word of the Day on September 24, 2026
A group of people, typically women, searching through someone’s digital footprint in order to find more information about that person.
Susie wasn’t sure if her new Hinge match was a creep, so she assembled Galantir and they found out he used to post slurs on gaming forums.
Galantir by Ge-sus September 22, 2026
Word of the Day on September 23, 2026
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