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nailbomb 

An improvized fragmentation device using nails, or similar readilly available metal objects as schrapnel.

Typically used by terrorists,and revolutionaries with out a governmental military budget. See also: Pipebomb, Molotov Coctail
Mind the nailbomb.
nailbomb by Psiberzerker April 11, 2004

Nailbomb 

A bomb used by extremist groups (of all ideologies) that causes horrific damage due to the shrapnel that is projected outwards on detonation of the device. Somtimes in place of nails will be nuts/bolts and other small pieces of metal.
Nailbomb by Austin November 9, 2003

Norwegian Nailboard Pipe Job Super-X-man Diving Board Formation 

When one partner paints them self in blue and lies on a board of nails with an X formation, formed by their arms and legs and then places a pipe with a circumference of 5cm above their entry point. Then the other starts by continuously jumping up and down on a diving board to gain height once enough height is gained, the person will then superman with their penis head facing the pipe into the first partner's entry point. Once completed, the room should be full of red (blood, from the pipe, which is too small to fit the girth of an average male penis), blue (paint, from the woman receiving a dripping blood penis) and white(semen or if done with caucasian people). With all these colors you've now decorated the room with a Norwegian flag.
Guy: Hey want to perform the Norwegian Nailboard Pipe Job Super-X-man Diving Board Formation.

Rachel: mmm... I don't know.

Guy: Trust Me I'll nail it

Rachel: Uhh.. ok I guess I'm down but only if you subscribe to SpectresRowdy on Youtube

2 hours later and a bloody penis...

Guy: "I just performed the Norwegian Nailboard Pipe Job Super-X-man Diving Board Formation on this petite teen named Rachel"

Guy 2: Nice wanna go watch some SpectresRowdy now!
A person living near or next door to the speaker or person referred to whom also willing to perform sexual intercourse. A neighbor with benefits.
"My nailbor and I got it on last night".
"OH shit, my nailbor is pregnant".
"If iI don't get lucky tonight, I will go to my nailbor".
nailbor by 44gr44 January 16, 2017

nailboarders 

Hashtag (#) used on Instagram by members of MUA (makeup alley.com)'s forum specifically for people who love painting their nails and are addicted to nail polish. They use it to share nail art they have done and nail polish they have bought
We use #nailboarders on instagram

Nailbomb 

A metal band that is most well known for their album point blank’s artwork, depicting what is assumed to be a female Vietcong soldier with an assault rifle pointed at her head.
“Hey have you ever heard of the band Nailbomb?”
Nailbomb by Pyramid head whore January 4, 2022
More from Urban Dictionary
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
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
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