A slang expression from the US Army, it originated during the Vietnam War and may be derived from the Vietnamese “di di mau", meaning to go quickly. Usage by American troops altered the meaning somewhat so that it referred to walking with dance steps or with an exaggerated swagger. It was used in the context of walking carelessly whilst on patrol in enemy territory, without paying proper attention to your surroundings and putting yourself and other members of the patrol at risk. The meaning later expanded to include moving or acting without considering other people.

When we out on patrol, that dumbass STRAC REMF gonna get us all killed with ‘is diddy bopping.

Diddy Bopping by AKACroatalin December 9, 2016

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OT Boppin

OT mean Out Trapping or just out of town or somewhere and boppin or bop means a good beat or just a good song but together means Out here making a good beat/song.

Friend:Where you been g
Rapper:nothing g just been out here OT Bopping

Friend: Ynaaaa my g making bangers everyday

OT Boppin by Tyron Jr May 24, 2019

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blippin

to be vaping your head off while your parents aren’t home and continuously vaping for the vaping buzz !!

“gonna b blippin me head off toni no one home 😂 “

blippin by msav.ie May 1, 2022

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Boppin

When a good song is playing and your body turns into a fucking metrodome

Guy 1: "Man this beat is boppin"
Guy 2: "Isn't that word from the 90's"
Guy 1: "Shut the hell up carl! God, you always ruin everything"

Boppin by Yeetmaster68 March 20, 2019

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Boffin

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

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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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Dutty

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

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Ajumma

korean word for madam, older woman

Ajumma wait a moment

Ajumma by aintnotinbutnice July 5, 2009

Word of the Day on September 30, 2026

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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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