4-0

Derogatory slang for mall security guards/vehicles. Derived from 5-0, a slang term for police officers/vehicles.

The 4-0 got on my ass after I boosted that Clay Aiken CD from Sam Goody.

by Sam March 4, 2004

4-0

Often used by fans of finished club FC Barcelona when something doesn’t go their way and they get mad. Their biggest trophy and achievement in season 2021/2022. Used by them to annoy other people but they didn’t found out yet that nobody cares anymore.

Person 1: Real Madrid are winning La Liga this season, maybe UCL and will get Mbappe for free.
Person 2: 4-0.

by honest barcelona fan April 9, 2022

4-0

A civilian or any non-law enforcement person who will (try to) bust you.

You check for people in here, I'm not tryna get caught

Yeah, no 4-0, were good.

by pitabreadyum July 6, 2010

4-0

Street slang for an undercover cop.

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

by Champ119 August 4, 2017

4-0

slang for a fourdypronunced four-o.

He the the store and get me a 4-0.

by B from the bay December 23, 2005

|-|4><0|2

Originally used in the hacking language now by ignorant noobs and veterans, the vets refering to hacking, the noobs just being idiots.

vet: ! |-|4><0|2 _|00|2 80><0|2
translation: I hacked your computer
noob: 0mg i'/\/\ 50 |-|4><0|2
translation: oh my god i am so hack
see the obvious differences

by justin June 28, 2004

]-[4><0|2

Leetspeak version of haxor.

1'm s0 t0t4lly -4><0|2 3v3r s1nc3 1 h4ck3d msn.com.

by mutant! August 13, 2006