54-50 

"No Police"

It appears to be a localized hybrid of 54 and 50 or fifty. It combines definitions of 54 (police radio lingo for 'no') and 50/Fifty (the slang term for police, as in "The 5-0", "Hawaii 5-0", or "the Fifty") to make "54-50" (pronounced "Fifty-four Fifty"). I keep hearing this term interspersed/interjected into the lyrics of local gangsta rap here in Baltimore.

"Bitches and niggas git outta my face (54-50....) dis is my crib, gonna bust your face (54-50...)"

54-50 by jtimleck October 6, 2008

54 year old SWAG 

BILL H.

Emily: OH MY GOD! Did you see that guy who walked by?:0*mesmerized*
Erin: Yeah, thats my dad. He has 54 year old SWAG :)

54 year old SWAG by SWAGMASTER2 July 30, 2011

54 Gang 

A South Florida gang "Broward Bounty" originated from Nine Trey bloods turned into an independent set E.P.G

Their motto is 54 gang or no gang.

54 Gang by J Tha Goat December 14, 2017

54 Zef 

Adj; Party flat, accommodation frequenting debauchery, rented town house for partying longer than a decade.

You cats going to the grandstand at 54 Zef for the game this weekend?

54 Zef by redditUN:_danimal June 12, 2021

54_xyz 

one of developers in sols rng

54_xyz and his team is working on sols rng! Finally an update after 79 years

54_xyz by solsrngaddict July 14, 2024

54-00 

"Yes: I am a dreamer.

For a dreamer is one who can only find his way by moonlight,
and his punishment is that he sees the dawn before the rest of the world."

-Oscar Wilde ✝ 54-00

54-00 by Voiceofreason2 February 7, 2025

muzio 54 

A white rapper who hails from the town of Seaford. Best known for posting bad rap videos on youtube and complaining about people continuously downvoting them. Has no idea how rap works and think he will get famous off of his shitty homemade songs.

"only thing for them to do now is create youtube accounts just to get at me
lol actually they already do that, create account like march 4th and start commenting on my youtube that day
couldnt you be filling out job apps instead of making youtube accs?
i dont think hating ever earned anyone money" -muzio 54

muzio 54 by wantagh's finest July 28, 2012