Thirds 

The standard Mexican Mafia tax on illicit proceeds in prison or on the street.

Ex. 1

Prosecutor: Are you familiar with the concept of thirds?

Boxer: Yes, thirds.

Prosecutor: What's that?

Boxer: Thirds is the standard tax on anybody, particularly for individuals coming into a prison setting. Anybody coming in with drugs or any illegal material, any contraband, they're required to give us a third, the Mexican Mafia members a third.

Rene 'Boxer' Enriquez, Testimony in USA v. Jaimez et al., September 12, 2018

Ex. 2

Boxer: I got an assignment for you. There's a trap house in Boyle Heights run by a dude named Nico. He's bragging about being tax free. It's on Matthews across the street from the high school--

Savage: --Isn't that the school where Jaimie Escalante taught calculus to all them cholos and jainas?

Boxer: Uh huh. And like Mr. Escalante, you're gonna teach Nico some math. Specifically, how the concept of thirds works. Make sure he knows that La Cliqua sends its regards.

Thirds by ZXY&ABC January 27, 2021

thirds 

the same as shorts on cigarettes

hey let me get thirds on that square

thirds by uhwhawt November 4, 2008

thirds 

Mixture of thoughts and words. See second definition of ord.

"Thirds!!!!"

thirds by P-Diddler June 30, 2003

Thirds 

Hi nick and Yajat

Damn they’re gonna get thirds

Thirds by Alphabetshoop July 5, 2020

thrashed thirds 

like sloppy seconds but thirds

that hoe was loose like thrashed thirds

thrashed thirds by whoreydildo January 3, 2011

turdy thirds 

1. like sloppy seconds, when you fuck a girl after shes had unprotected sex and you slide in and out of her using the other guys semen as lube, except that its from 2 guys instead of one.

2. when you like an ugly girl for the third time

1. O man she was so easy to get into last night.
-Yeah cause you were the third guy to fuck her.
aw fuck i had turdy thirds

2. Larisa is such and ugly chick i cant belive you liked her three times....TURDY THIRDS

turdy thirds by anarchicphantom November 13, 2005

Stacking Thirds 

When three men each have a third (1/3) of an erection, and combine their efforts to achieve one (1) full erection.

Damn Girl! My friend and I think you're kind of fine. When our buddy-who sort of agrees-gets here, we'll be Stacking Thirds to Folsom Prison.

Stacking Thirds by Dogstar Reeves July 22, 2010