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an unreliable illegal firearm frequently used by the gangs of Britain.

Unreliable hence the name "onepop" as in it'll likely only fire once.
"don't slide on my block with a onepop"
onepop by yinged August 25, 2022

onetopicatatime 

Onetopicatatime is the accepting father figure of YouTube and other social medias. He is a hard worker and cares for everyone. He has been known to be wholesome, loving, and is the Keanu Reeves of YouTube.
"You are so onetopicatatime!"

"Awe, I don't deserve that title."

"You are amazing, you so do!"
onetopicatatime by RubyBlue2005 June 27, 2019

OneTopicAtATime 

OneTopicAtATime is an extremely wholesome YouTuber who covers different subreddits such as: r/suddenlygay, r/Traa, r/wholesomememes, r/LGBT and others...

He does collaborations with other YouTubers such as TheClick, OZmedia, JaminDoger and his YouTube group, SadMilk

OneTopicAtATime helped me through tough times with his over-positivity...
Me: Have you subscribed to our lord and wholesome saviour, OneTopicAtATime?
Friend: Who?
Me: We can no longer be friends...
OneTopicAtATime by AlexTheTransBoi August 24, 2020

onePOINTeight 

A common username for online forums usually pertaining to an automotive website. It has reference to the 1.8 liter DOHC engines found in most japanese vehicles. Also a well known Diablo II player who conquered most of US East realm.
"Dude did you see what onePOINTeight said in that thread?"

"nah, i bet he drives a Honda though"
onePOINTeight by IndigoSS August 27, 2009

One pop screamer 

A drinking lightweight, generally female; a person who gets crazy and libidinous after just one cocktail; an easy mark early in the evening at the local saloon; a cheap date easysluthocheap date
"That chick is all over that architect guy from Eastham.... What gives? We've only been here for fifteen minutes!"
"Yeah - that sucks - he managed to find the one pop screamer!!!!! Dude...."
weed joint spliff j jabba marijuana
Small amount of cannabis in a little skin with a small amount of tobacco.
you smoking a one pop there?

yeahhh mannn!
one pop by superwomannn June 15, 2019
More from Urban Dictionary

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
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
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