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National 69 Day

Holiday celebrating eating pussy and sucking dick.
(Preferably at the same time)
"Hey babe, can we 69?"
"Um. No."
"But it's National 69 day!"
National 69 Day by Allevi April 16, 2018
69 day is June 9. The ninth of the sixth month.
Happy 69 day!!!

Have fun 69ing today.
69 day by Tburn June 9, 2008

Wine and 69 Day 

If a woman treats her man special on Valentine's Day, then he will treat her special two months later on April 14th. Since women don't want flowers or teddy bears, her special day consists of a glass of vino and some 69!
Keelie: Do you know what day it is today?

Kat: It’s wine and 69 day Keelie. I hope Dave has got some Savvy B chilling the fridge
Wine and 69 Day by Harlot Hunter December 27, 2020

International 69 day 

This great day is on the 6th of september, each year. The wonderful day where everyone gets head whilst giving head. It's just a great W for everybody around. Everyone gets head, everyone is happy.
Gary: Oh m8, can't wait till the 6th of septemeber.
TIm: Oh why is that?
Gary: Dude its the international 69 day, me and Beth are gonna get it on in the back of me van.
International 69 day by MattsCrack September 23, 2019

69 day streak

When you get a 69 day streak on snapchat, you have to 69 with the person it is with, only if they are the opposite sex.
Megan and I just got our 69 day streak. I can't wait to eat her out tonight!
69 day streak by Bigtithead July 8, 2017

69 Day Streak

When two people have reached their 69 day streak, they must 69 or send nudes to eachother
Aw man we finally reached our 69 day streak
69 Day Streak by Heldpeen May 26, 2019
More from Urban Dictionary
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
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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