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Tachy is short for ventricular tachycardia, which is a a very rapid heart beat and a form of cardiac arrest.
From Firefly:
Doctor 1 : He's going tachy!
Doctor Tam : Ya, but his heart is beating.
Tachy by Dather May 17, 2009
Words you can keep

Tachy Goes To Coventry 

A term used by vBulletin forum software to define its 'global ignore list'. Administrators of a forum can choose to put a user on this list. Their posts can be viewed by themselves, but all other users do not see their posts on the forum.
Forum Administrator: I think we need to Tachy Goes To Coventry that user already.

Kang Taehyun 

An ethereal being sent from the Heavens. An actual, literal, majestically magnificent angel with a voice as sweet as honey. He shines brighter than any celestial body in the universe. He IS the universe. His face is impeccably pristine and quintessential.
Kang Taehyun from TXT is a blessing to this Earth.

Taehyung 

A name for a boy who has beautiful brown eyes and the most precious smile. You will fall in love with him at first sight. His deep voice will melt your heart and he will completely destroy your bias list.
Taehyung's deep voice in Singularity destroyed my bias list. I now have no idea who my bias is.
Taehyung by singularitae June 6, 2018
Kang Taehyun is a very talented and beautiful member of the group TXT.
He has a honey-like voice with a very calming effect. Not only is he a wonderful singing but also an amazing dancer. Taehyun is very good at pretty much everything and is shockingly smart. He used to be a boxer, can grip 60kg with one hand and could put you into a five decade sleep if you breathe the wrong way. Taehyun is also very funny and has the most precious laugh on this planet. If you're ever sad, just look at him smiling and your day will brighten up immediately. Kang Taehyun is so beautiful that he looks good from every single angle to exist.

When Taehyun is performing it's simply mesmerizing. Once you fall for his charms there's no turning back.
Yoora: Nana, you're such a simp for Taehyun
Nana: No, I'm not. Taehyun is just very talented and adorable.
Yoora: Omg, simp
Taehyun by UrFavSimp July 1, 2020

tachanka 

the lord
bow before tachanka
tachanka by TITTYFRIDAY December 1, 2016

Lord Tachanka 

Deadly, fierce, and a true force to be reckoned with. Native to Mother Russia, our Lord is a brilliant mathematician and warrior. You do not hunt Tachanka, for Tachanka hunts you. You do not kill Tachanka, for Tachanka kills you. You do not beat Tachanka, for Tachanka beats you. He is our Lord and Savior, the only operator worthy of our praise.
All bow and praise your savior Lord Tachanka, or face the furry of pure Russian anger.
Lord Tachanka by EggCombo May 20, 2018
More from Urban Dictionary
Acronym, meaning Too Long Didn't Understand
Similar to TLDR
Sister: This meeting was to discuss the rough draft of my essay, where we discussed the subsidiary questions I added in my rough draft. We also discussed the relationship between my main title and the real-life situations I chose to use in my essay. We discussed the structure of my essay as well, specifically the Math AOK section and how it relates to the contradiction of the title. This second meeting was particularly helpful in discussing the implications of my essay claims and how to apply the title across various areas of knowledge. There were many sections of the essay that could have been cut down in wordiness and the ways of knowing required further and more in-depth analysis.

Me: Woah! TLDU!
TLDU by L-Evans January 14, 2019
Word of the Day on August 30, 2026
the act of having anonymous sexual encounters with other men in public toilets.
Cottaging by greeef April 24, 2003
Word of the Day on August 29, 2026

Salad Days 

green inexperienced youthful judgement and cold blooded execution of those judgements.

Rashness with little concern of consequence.

Antony and Cleopatra. William Shakespeare

"My salad days,
When I was green in judgment, cold in blood."

- William Shakespeare, Antony and Cleopatra, 1.5
"How did you end up in jail?"

"Salad days, 'nuf said."
Salad Days by GilbyRFC0 October 7, 2011
Word of the Day on August 28, 2026

age gate 

An absolutely foolproof way to keep minors from viewing content deemed "too mature" for them to watch.
Billy: "So I was trying to watch some videos for an M rated game, and I ran into an age gate, so I put in my real birthday. SOMEHOW it managed to figure out that I am 12. CURSE YOU AGE GATE!!!"

Bill: "Fucking age gate! *quick scroll* THERE! I was born on January 1, 1904. Fuck you age gate."
age gate by Banja January 7, 2011
Word of the Day on August 27, 2026

board chow 

A)
The Crud that collects under the keys in a keyboard. Usually more severe in the keyboards of programmers and webmasters as they tend to spend a lot of time at the the computer and thus eat at their desk. Mainly affecting IBM Model M (clicly) style boards.

B)
Can also be used to gross out Non-Techie people
A)
Bill: want to go to the club?
Bob: No, I've got to clean out my board chow, keys are starting to stick.

B)
Bill: Want to go out to get a bite?
Bob: No, i am just going to have some of my board chow/
Bill: Whats' that?
Bob: The food scraps that collect in my keyboard; Want some?
Bill: *GAG* *HURL* *GAG*
board chow by BinaryHackerMan September 3, 2007
Word of the Day on August 26, 2026

young pup 

a young person, a young adult in their late teens/early 20s.
Ah, you're just a young pup at 23!
young pup by the dog May 30, 2006
Word of the Day on August 25, 2026
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