Dirty thirty

When a person reaches the age of thirty and uses promiscuity to try and convince people that he and or she was not a prude.

She doesn’t want anyone to know that she’s just a dirty thirty.

by Hardcore art September 1, 2019

Dirty Thirty

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

Oh someone clearly reached their dirty thirty

by Bm24310 January 30, 2021

the dirty seven thirty

having sex with seven men and or women at the same time

can't wait to turn the dirty seven thirty around

by Cracker Jack Jones December 29, 2010

Dirty Thirty

Slang term: A person's 30th year of life. Typically a 30th Birthday term representing one surpassing their 20s to enter the "dirty" part of life. Adulthood. Dirty 30 celebrations tend to be a night full of drunken debauchery. Full of bad decisions, vomit, and unnecessary semen in random places.

"Marrisa is turning 30 this year."
"Ooooh shit. Goodbye 20s. Time for a Dirty Thirty party!!! No black lights. I still have cum stains on my jeans from Stephanie's dirty 30 party last year. "

by Eww_bitch_nooooo October 13, 2021