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tetelestai 

Literally translated the Greek word tetelestai means, “It is finished.” The word occurs in Greek translations of John 19:28 and 19:30 and these are the only two places in the New Testament where it occurs. In 19:28 it is translated, “After this, when Jesus knew that all things were now completed, in order that the scripture might be fulfilled, he said, ‘I thirst.’” Two verses later, he utters the word himself: “Then when he received the sour wine Jesus said, ‘It is finished,’ and he bowed his head and gave up his spirit.”

The word tetelestai was also written on business documents or receipts in New Testament times to indicate a bill had been paid in full. The Greek-English lexicon by Moulton and Milligan says this:

“Receipts are often introduced by the phrase sic tetelestai, usually written in an abbreviated manner...” (p. 630). The connection between receipts and what Christ accomplished would have been quite clear to John’s Greek-speaking readership; it would be unmistakable that Jesus Christ had died to pay for their sins.
dude 1: "aye man, my sin is keeping me from living righteously with God"
dude 2: "it's already been paid in full by Jesus man... tetelestai!"
tetelestai by you are great. November 13, 2011
Related Words

Tortellini 

Tortellini is the archdemon of the seventh circle of hell.
Beware for Tortellini is the most powerful of the archdemons.
Tortellini by Thoulur January 16, 2019
A Terelak is someone who is grumpy most of the time. To strangers he seems unapproachable and quite morose. To outsiders watching in, he can seem bored and disorientated. To those who know him, he often dishes out bants left right and centre. Often after a big night out a Terelak will come to work late, unshaven, wearing the same clothes (or a similarly grotty and unironed item) and being even more grumpy than usual. A classic Terelak tactic after such nights is to not wear his jacket, therefore making it look like he's been at his desk and is not actually late.

Terelak's often use vocab no-one understands. It is essential that a dictionary is relied on when talking to a Terelak.
"I did a Terelak last night, lost my keys, my phone, my life!"

"Why is that guy so angry looking?"
"Oh, I wouldn't worry, he's just a Terelak"
Terelak by Megabants November 15, 2012
a male hawk, usually a male peregrine falcon
the tercel swooped down and bit off the chipmunks head.
tercel by vive cuervo May 13, 2005

terrell attack 

This phrase is used when one spams Animoji photos. Though it can be used when spamming regular photos as well, this phrase is most commonly used when specifically spamming Animoji photos.
Tyenten: *sends 10 Animoji's of himself* "terrell attack!"
Thrithousind: "WOW - what an Animoji surprise!"
terrell attack by heyhey00 June 10, 2021

teitelitarianism

Teitelitarianism happens when the principal of a high school does not heed to the needs and requests of students, is closed to new ideas, and almost always sides with the administration. This principal is often mocked, such as by students shouting "Stanley! Stanley! Stanley!"
Principal: Get out of the building! Party's over! I have work to do!
Student: This is teitelitarianism! Do not give in!
teitelitarianism by stuy '09 June 26, 2009
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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