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A play on "inept", or "ineptitude". The word is used to describe someone who is incompetent, stupid or an idiot.
Can also be used to refer to someone who takes credit for another person's idea after the fact, or only talks about things and never actually does them because they are too incompetent.
"The Australian Greens are such fucking nepts. They do nothing and take credit for other parties' policies because they don't know what they're doing and think taxing corporations is easy to do without them fighting back."

"Oi them fucking wankers are nepts innit?"
Nept by RandomOnlineBozo#54 April 22, 2025
Being inept at all things electronic. Computers, phones, internet, software, etc.
Jesus Christ, Bob. You are so fucking E-nept.
E-nept by Someguy77 August 29, 2014

oh neptune 

An expression used when something goes horribly wrong but you are somewhere where it is inappropriate to use the term "fuck" or any other vulgar therm.
oh neptune by BillNyeTheCoolestGuy September 16, 2015

Neptune Effect 

When you think you hurt something, but it was minor.
When I sat on my finger, I thought I broke it, but it was the Neptune Effect.
Neptune Effect by J-Dogg147 July 30, 2016

neptune's kiss 

The splashback of cold bog water up your ringpiece when dropping the kids off at the pool.
(from cubicle): "Aaaaaah"
(from other cubicle): "Neptune's kiss?"
(from first cubicle): "More of a peck on the cheek."
neptune's kiss by Dannyboffin October 28, 2007
1) Roman equivalent of Poseidon.
2) 8th planet from the sun.
Neptune is underrated.
Neptune by the random. October 2, 2021
More from Urban Dictionary
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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