Web2.0 manufacturer 

A web design company making unremarkable websites that conform to the trends of the Web 2.0 revolution. These style conventions would include but are not limited to: shiny, reflected buttons; subtle textures and drop-shadows; excessive use of gradient backgrounds; rounded corners; jQuery slides above the fold; and nonsensical cutesy, vector illustrations.

Redesignunit; Interweb; Ashaker; Cyberdesignz; Utargeting; to name a few web2.0 manufacturers.

Web2.0 manufacturer by Danxyeal July 17, 2011

4-0 

Street slang for an undercover cop.

Ay mane I think a 4-0 dry dat vic mane

4-0 by Champ119 August 4, 2017

1-0 cry

Nowadays used to represent the act of taking an L.
Originated in the depths of the PC GTA Online tryhard community, when crews like SUCE, NAVY, SWCC and MWPC used to kill each other. The purpose was to be “up” on your opponents (which means having more total kills, e.g. 36-28) but this was taken to the most extreme point, when getting few kills in the most bizarrely cheap ways led to making your opponent rage (1-0 gg no re, cry).

A - “1-0”
B - “But you killed me while I was chatting”
A - “1-0 cry”
B - “Nah bro that’s a cheap kill”
A - “1-0 gg no re”

1- “Check out this meme”
2- “It sucks, I’ve already seen it one week ago”
1- “But I’ve got it from my favorite meme account on Instagram bro!”
2- “1-0 cry”

1-0 cry by .I. September 5, 2018

Covid-0 

when covid never existed

covid 19 more like covid-0

hey shut the fuck up

Covid-0 by JaydensRandomDefinitons May 6, 2020

5.0.5 

a cute bear with a flower on its head created by Dr. Flug from the CN show Villainous

"I've only had 5.0.5 for a day, and if anything happened to him, I would kill everyone in this rom and then myself,'

5.0.5 by Cartoonerr December 24, 2020

I/0

One of the most impure, horny, sex-driven individuals to ever grace the planet. Generally a good person until you mention anything remotely lewd. Vehemently denies any allegations, but anyone who's spent more than 14 picoseconds around him can tell it's all a facade.

Not to be confused with I/O.

Uh oh, I/0 is having lewd thoughts again!

I/0 by ItsJimothy August 10, 2021

The 5-0 

a cop ;

Ya'll kids put your seatbelts on, there is The 5-0.

The 5-0 by loveyounot October 3, 2016