to have anal sex with someone
or to carry weapons or drugs in your car illegally.
"yo man i had a dream last night that me and sarah were ridin' dirty, if only i could get that prude bitch to try it"
by The one who knows all April 03, 2006
Get the merch
Get the ridin' dirty neck gaiter and mug.
The act of walking around town with poopy time in your pants.
"Do you smell that? I think Marni must be ridin' dirty again."
by dirtypants August 05, 2008
Get the merch
Get the ridin' dirty neck gaiter and mug.
(1) Ridin' dirty refers to the act of riding on Las Vegas public transportation (namely the Deuce Bus) for an extended period of time without travelling a great distance.

(2) The act of partially soiling one's underpants and continuing to "ride dirty" as though nothing had happened.
Person 1: We've been on this bus for like 20 minutes and we've only gone a block.
Person 2: Ya, we're ridin' dirty.

OR

Person 1: "I think I might be ridin' dirty."
Person 2: "Seriously"?
Person 1: "I dunno, I might be."
by John Incubus June 27, 2006
Get the mug
Get a ridin' dirty mug for your dad Manley.
Continuing one's activities after having defecated without wiping one's anus.
Gangsta: Yo, man, he was ridin' dirty all night last night.
Homedawg: Yeah, man. That must explain why he smell like crap.
by Ward8 May 26, 2006
Get the mug
Get a ridin' dirty mug for your mother-in-law Rihanna.
A song by Chamillionaire about how the cops are out to get him because of his race. Well...simply to me...to put it into simpler terms...the lyrics are:

They see me rollin
They hatin
Patrolling they tryin to catch me ridin dirty
Tryin to catch me ridin dirty
Tryin to catch me ridin dirty
Tryin to catch me ridin dirty
Tryin to catch me ridin dirty
My music sold out
I'm swangin
They hopin that they gon catch me ridin dirty
Tryin to catch me ridin dirty
Tryin to catch me ridin dirty
Tryin to catch me ridin dirty
Tryin to catch me ridin dirty

BUT!
Here's what it should be instead of Ridin Dirty:

They gaze upon me driving, They feel a pang of strong dislike, Following my car attempting to view me driving with uncleanliness, Attempting to view me driving with uncleanliness x4.
The music I have made is selling large amounts of tickets, I am very rich, The cops are praying that they may view me driving with uncleanliness, Attempting to view me driving with uncleanliness x4.

For the people who don't understand the new SLANG
by DanceswithWhiteBoys November 20, 2006
Get the mug
Get a Ridin Dirty mug for your friend Yasemin.
When one takes a large dump and forgets to wipe, therefore leaving skid marks in one's under garments.
Your mother when she takes off her panties.

"Bitch, I be ridin' dirty"
by Amanda Gilizzle June 11, 2006
Get the mug
Get a ridin' dirty mug for your bunkmate Julia.
for a girl: the act of having great sweaty sex with major ejaculation inside of you, and not taking a shower and proceeding with normal daily tasks (ie: going to work, market, school (college of course), or visiting a friend or OBGYN (OH NO!!).
Female says to friend as they shopping at the mall: omg! I saw Kevin today, and I totally forgot... I'm ridin' dirty!!
by OSEYDIBTN December 27, 2017
Get the mug
Get a Ridin' Dirty mug for your mate Riley.