t0 

Commonly read as "tee zero." Internet slang, used primarily by the programming/cracking/hacking crowd – though its use among gamers has become more widespread lately.

Meanings:
1). the beginning
2). since the beginning
3). at the beginning
4). preemptively

Synonyms: all along, from the start, preemptively, beforehand

Origins:

Contrary to the belief of some, the etymology of t0 is probably unrelated to NASA's MET system (see tminus). Rather, it more likely has origins in the statement t = 0, in this case representing the time at which a particular event began.

I knew t0, but didn't tell anyone.
I created a rudimentary map of the area t0 to avoid any potential issues later on.
Looks like they had the game in the bag t0 – we lost before it even began.

t0 by Hohenfall January 29, 2015

T₀ 

Read as Trump’s naught or reproduction number. The total number of people Donald J. Trump had infected and is likely to infect in coming days and weeks, because he selfishly and vaingloriously refuses to protect others by wearing a face mask and to isolate himself, when he is still not corona-free and is contagious to others.

Based on media reports, the White House superspreader’s T₀ among his entourage has so far been no fewer than a dozen victims.

T₀ by MathPlus October 9, 2020

h4x0rz t0 t3h m4x0rz 

0mfg s0m30n3 wh0 us3s g4y h4x0rz 1n g4m3s l1k3 CS s0 th3y c4n w1n b3c4us3 th3y 4r3 n00bs

h4x0rz 4r3 t3h gh3y

0mfg 41mb0tz 4r3 gh3y!!!!!!1111

h4x0rz t0 t3h m4x0rz by a kid w/ no life August 9, 2004

t00l 

the superlative form of "tool". used to describe an immensely stupid, self-absorbed, or awkward individual. actual t00ls often misuse the word to humorous effect.

examples of t00ldom include: commenting on others' facebook wall posts, injecting oneself into conversations, being recklessly self-important, operating under the delusion of having many friends, and shamelessly imitating superiors

K: Wow, Rob just commented on the wall post you left me!
O: How awkward... he's such a t00l

t00l by p00kster September 13, 2009

t00thbrusheater 

Our alt god😌💅

“Did you hear t00thbrusheater posted a new video?” “Yeah their my god lol”

t00thbrusheater by Gooseswife July 6, 2020

n00b t00b 

A rocket launcher used in a game.

When a newbie (n00b) can't kill anyone with a machine gun or rifle so he uses a rocket launcher for cheap and easy kills.

"He's using a fucking n00b t00b."

n00b t00b by FatalxXxImpact June 24, 2005

t00ruchan 

the love of my life, so perfect (sadly an oikawa kinnie) very funny we might brake up tho.

“Hey, T00ruchan just posted a tiktok about finding a bird attractive! How weird!”

t00ruchan by Milo Chan March 10, 2021