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"Hey Babe, we are totally In-Sync!"
In-Sync by an eddie September 21, 2020

in sync bb 

when you and your "friend" wake up at the same time.
"just woke up"
"me too, in sync bb"
"😍 lets go"
"now we can have sex"
"sure"
in sync bb by notcassie October 14, 2021

In sync bb 

A joke in the Dream smp fandom, more so common in the Dnf fraction of the Fandom, where Georgenotfound and Dream(wastaken) woke at at the same time and texted each other.

The texts were read out loud by dream on stream, and has been clipped and viewed by people many times.
Dream= in sync bb
Now we can have ***

George= sure
In sync bb by Proxwashere September 13, 2021

pumping cock in sync 

usually performed while watching porn, but also applicable while watching live sex at a party

the act of matching the penetration depth of cock in observed fornication to the depth of one's own cock in one's own hand or other cock stroking device

balls deep in observed fornication pull hand down to match either to base of cock or to the limit of stimulation of hand
boxers all the way down, lube ready, porn site loaded and porn playing, reality melts away pumping cock in sync, usually jizzing before video ends

repeat until unable to get hard again in lieu of fornicating.

insyncex 

In sync exercise.
Two lovers coming together to "do life" step by step in sync always watching each others back helping catching giving taking. gradually getting better.
"I want to do the insyncex with you."
insyncex by Krkič December 4, 2021

Insynctomatic 

When you are so in sync with the homeboys that no one else can jump on your wavelength because the symptoms of this ultimate duo are asymptomatic.
Damn homiebear, we insynctomatic fr fr.
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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