the 30 

to be completely knowledgeable on a particular subject; the authority

"Jennifer Aniston is the 30 on ruining her own relationships."

"That guy is the 30 on not being cool... he has a mullet!!!"

the 30 by the30 March 28, 2009

The 30 seconds 

"The 30 seconds" is a street game played by inner city residents of Pittsburgh, PA. The objective is to fight / try & knock each other out in under 30 seconds. Certain parts of Pittsburgh call it "the 10" or "the 20" which is the same rules but with less time.

Wassup wit "the 30 seconds" ike?
Silk we could get "the 20" right now.
G-bo ill run "the 10" wit you niggi.

The 30 seconds by ShadyJuJu305 April 14, 2017

The 30 year old virgin 

The teacher at school who gets hard around 14 year olds. He eats lunch alone and none of the teachers talk to him. He teaches the class about the The Magic Bullet of JFK and the Commies. His head is shaped like a lightbulb and makes you get a hall pass to go to the bathroom.

Adam- The 30 year old virgin is coming
David- Why is he always hard around 14 year olds?!

The 30 year old virgin by chickenballs999 June 4, 2018

The 30 Club

An exclusive club for individuals in their 30’s who have dentures, either due to poor dental hygiene, or heavy drug use, such as methamphetamine.

Charlie has new teeth!! Yeah, he joined the 30 club and got dentures.

The 30 Club by Cmendemen September 21, 2021

shoot the 30

Squaring up with someone to fight.

I'm about to shoot the 30 with her if she doesn't keep my name out of her mouth.

shoot the 30 by Dreamdoll_ March 20, 2017

Shoot the 30

Originated in NYC , when one is about to fight someone for 30 seconds . “Shooting the 30” mostly common in boys when fighting:

“Shawty was talkin down on my name so ima have to juice her then shoot the 30 with her!”

Shoot the 30 by skythememelord May 3, 2019

Shoot the 30

To fight

If Benny Wanna Shoot The 30 Tell Him We Can Do It After School.

If Benny Wanna Shoot It Then Tell Him To Come At Room 305 At 2:19.

Shoot the 30 by Link71812 May 8, 2019