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A shortening for the band 30 Seconds To Mars' name.
The 30STM concert last night rocked!
30STM by HartlocksAxeLead March 30, 2009
Related Words
Abbreviation for 30 Seconds To Mars or Thirty Seconds To Mars.
An awesome band, fronted by actor Jared Leto on vocals and bass, with his brother Shannon on drums and Tomo Milcevic on guitar.
"Have you seen the video for A Beautiful Lie?"
"Yeah, 30STM always make awesome video clips."
30STM by frankiexMB20xMCR October 16, 2008
Slang for the perscription drugs Percocet or Percodan, which is an opiate or painkiller, commonly used recreationally for its euphoric effect. 30's are specifically Percocet 30 mg.

Ironically, Percocet is an opiate, which is a nervous system depressant, and the slang term perc cannot be verbally distinguished from perk, which means to make more alert or active.
Steve almost burned down the house because his dad wouldn't give him money for 30's!
30's by STEVE VB March 6, 2012
It's the simply word for "30 seconds to mars" the alternative-rock band of Jared Leto, Shannon Leto, Matt Wachter and Tomo Milicevic. They also called themselves as "THIRTYSECONDSTOMARS" They made two albums the first is self tittled and the seconds is called " A beautiful lie"
"You were on the 30stm message board ?"
30stm by thoseyes December 1, 2005

dirty 30s 

The 30-aves in East Oakland, California. Hella dangerous for non-residents.
Where that hoe Bubbles stay at?
She stay in the dirty 30s.
Shit, I ain't tryin' to hit that bad.
dirty 30s by pbarr October 27, 2011

Dirty 30s 

Opiate Pills pressed (made clandestinely with an illegal pill press by a drug dealer. This refers to the “blues” or “M 30s” due to the fact they’re nearly the same size, shape and color of oxycodone 30mg pills. Also called “perks/percs” after “Percocet”. Made with fentanyl.
Man, I watched an injecting Heroin user fall out yesterday just from smokin’ dirty 30s”

“Damn bro, those blues are strong AF
Dirty 30s by Stella Shines June 13, 2022