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Nondisjunction 

literally means ("not coming apart") when, sometimes in meiosis, homologous chromosomes or sister chromatids that are paired up together during metaphase remain stuck together instead of separating. Simply stated, nondisjunction is the failure of chromosomes to correctly separate during either meiosis I or II. Also, nondisjunction leads to aneuploidy.
It seems that these chromosomes did not separate correctly during metaphase, which I conclude that they went through nondisjunction.
Nondisjunction by T2o8 March 21, 2010

nondickeryment 

The act of not being a dick.
My iTunes is finally working again! I wonder if this nondickeryment is here to stay.


Come on, you're too nice. I'm sick of your nondickeryment; show some spine!
nondickeryment by LizPresto March 3, 2009
Boston slang for basically a nobody.
Random guy: you know who I am stop playing

Me: bro who are you you’re a Nondi stfu
Nondi by Yayarackz November 18, 2022

nondicenslongissimumverbumrecteinprimoattententphobia 

Mispronouncing an exceedingly protracted expression the initial occasion.

(first part is not just filler, if you split it correctly, it is latin for:

not saying a very long word correctly on the first try
)
/nɒndɪssɛnslɒŋɪɛssi mʌmvɜ bəmrɛkteɪnˈpri məʊəˈtɛndᵊntˈfəʊbiə
/

Yeah, my friend has *breathe* nondicenslongissimumverbumrecteinprimoattententphobia
An artist or band so underground that they haven't ever performed their craft.
Nah...he ain't indie, he's nondie. He ain't ever even picked up a guitar.
nondie by AgentColdShadow March 17, 2016

politically nondiverse moderator/editor 

where the moderator/editor rejects entries to urbandictionary based on their own political biases. this is a bad thing because then your urbandictionary will become marginalized for a smaller group of people as opposed to becoming the expression of the entire population.
urbandictionary has a politically nondiverse moderator/editor that rejects many entries because they don't believe in diversity of thought and they don't believe in being politically fair and balanced. the moderators/editors are politically nondiverse which is contradictive of the definition of "moderator." freedom of speach must include speach that you personally may have a bias against. why not get an adult with some life experience behind his/her belt that understands what freedom of speach is to moderate/edit your urbandictionary so it can evolve to become something taken seriously by the entire population? food for thought...
More from Urban Dictionary

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
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