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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

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

Frothability 

The measure of an emotional and over zealous consumer in an upwardly charging market, also known as a bull market. It's characterized by rising asset prices, increased investor confidence, and favorable growth in the markets, bro.
The frothability was evident as over-zealous consumers eagerly engaged in bidding wars, driving property prices to unsustainable levels reminiscent of previous speculative bubbles.
Frothability by cptn.kagaroo1 January 26, 2024
Word of the Day on November 12, 2026

Soul digger

A man who dates women with the sole purpose of exploiting their time, energy, and labor while he sucks the joy and happiness from their lives.
"That guy's a soul digger. He'll expect you to work full time, but you'll be doing all the cooking, cleaning, laundry, shopping, and childcare while he plays video games or watches TV."
Soul digger by anonymous November 11, 2026
Word of the Day on November 11, 2026

pod person 

A person pretending to be something they aren't, or an impostor. This is inferred because of the old alien movies where alien pods appear on earth and the "pod people" dispose of the humans and slowly reproduce the bodies, pretending to be humans.
The pod person was pretending to be my father, but I knew that he was an alien when he acted differently than my father ever would have.
pod person by Christopher M. May 9, 2005
Word of the Day on November 10, 2026
A dead drop is a location used to secretly pass items between two people, without requiring them to meet.

Spies have been known to use dead drops, using various techniques to hide the items and to signal that the drop has been made. Drug dealers use this as well.

A common place is to duct tape the item to the underside of a toilet cover in a public restroom.

A signal is sometimes used as well to indicate there is something to pickup, like a pile of stones in a certain formation. After checking the drop the signal is removed.
"The dead drop is the restroom toilet at the Gulf station at the corner of Commercial Ave. and Georges Rd."
dead drop by rubberroom July 23, 2008
Word of the Day on November 9, 2026

No Surprises Wedding

A "No Surprises Wedding," or NSW, is a wedding invitation designation that tells attendees that there can be no unplanned announcements, engagements, events or speeches at the wedding - all actions must be pre-approved by the couple. Anyone who performs an unapproved "surprise" will be asked to leave the wedding early.

This designation comes from Reddit, where so many stories of bad wedding behavior indicated a need to communicate expectations for the wedding behavior of attendees.
You are cordially invited to the nuptials of Brian and Tom on October 31 at noon.

Please note that this wedding is child-free (under 10) and a No Surprises Wedding (NSW). Reach out to wedding planner Sami Smith to request approvals or exceptions; please note that exceptions will be rare. Limited child care for under-10s will be available. All approvals will be noted and included in planning. Unapproved, or surprise exceptions, will result in guests being asked to leave.
Word of the Day on November 8, 2026
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