the area code of yuba city, olivehurst, roseville,wheatland, other small cities in that area as well in northern california.
dude 1: im straight outta tha dirty five thirty nukkuh
dude 2: what?
dude 1: yuba city, fag
dude 2: oh
dude 1: youre hecka gay
dude 2: what?
dude 1: yuba city, fag
dude 2: oh
dude 1: youre hecka gay
by Matt__X May 5, 2006

area code 530 in nor-cal that extends from davis (yolo county) all the way to yuba city. mostly made up of small towns and farmland. next door neighbors of the yay area.
by nor-cal girl September 7, 2006

A dirty 5 thirty is a act based out of northern california that involves stealing your mothers grocery money to buy meth.
by Landing man November 29, 2015

When you reach thirty years of age and are in complete denial and act like a complete reckless penis to compensate the fact your slowly dying
by Bm24310 January 30, 2021

Male testicles that range from the age of 30-39. These testicle tend to have problems, this is when men should get their sperm count checked and make sure they have a lively swimmers. If a male has a lack of ability to hold a woman, it must be because his balls don’t work. This is a common theme for people named Daniel. More than likely it has to to do with looks, but their testicles get saggy and sweaty throughout this 9 year period. Most women do not like a man with “Dirty 30’s”, especially those who do not get them checked out. Damage to the testicles may also expedite this process.
Person 1: Dan, you suck at dating!
Person 2: No I don’t! It’s women being women!
Person 1: Dan, it’s your dirty thirty’s! Most women and little girls don’t want that, they want Man Balls!
Person 2: No I don’t! It’s women being women!
Person 1: Dan, it’s your dirty thirty’s! Most women and little girls don’t want that, they want Man Balls!
by CMBD_MD April 13, 2025

The Dirty Thirty (Dirty-30) is a southern colloquialism for .30-30 Winchester (.30 WCF), a popular rifle cartridge mainly used for hunting.
"Yeah brother this Dirty Thirty has taken more deer than any round ever made"
"I'm gonna have to start shitting gold if I'm gonna keep hunting with this Dirty Thirty."
"I'm gonna have to start shitting gold if I'm gonna keep hunting with this Dirty Thirty."
by ActuallyRealDonaldTrump December 10, 2022

by Cracker Jack Jones December 29, 2010
