Similar to a clown car, except that instead of 15 or 20 clowns packed in a car for amusement. A Mexican car is packed with 15 or 20 Mexicans illegals trying to cross the border.
Last week a Border Patrol agent pulled over a suspicious vehicle that turned out to be a Mexican car.
http://www.youtube.com/watch?v=v5_RkYXlmXE
by bigscottlarock December 24, 2008
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A bucnh of really shitty cars parked in an empty lot. usually old datsun pickups and thirty year old toyota cars
hey, if you're looking for a car, why don't you dty the mexican car lot down on the corner
by everyonesgrudge August 25, 2008
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A car rinse resulting from a rainfall.

This usually requires said car owner to be lazy, cheap, or both.
Guy 1: Man, It's raining again!

Guy 2: That's cool, always up for a Mexican CarWash!
by Tom K. February 7, 2005
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When you fart in somebodies car when they are parking with the windows rolled up. Upon return the smell has been magnified by hours sitting in the hot sun and explodes with the opening of a the door. Usually done with a taco fart.
I gave Tom a ride to work and he thanked me with a Mexican Car Bomb.
by Fygg Nuuton September 27, 2008
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A ghetto device used to break into cars illegally.
You just need some Mexican Car Keys to own whatever car you want.
by The_Sentinal March 11, 2009
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What you might get to have in your car if you are too dirt cheap to afford a real car stereo. It may consist of either:

A). You or someone else in your car keeping(or at least trying to keep) everyone entertained by singing songs and/or making "music" by making sounds with your mouth and tapping and banging on objects with your limbs.

Or:

B). Having an entire band of musicians in your vehicle playing for you(particularly if they are not playing electronic instruments). This is a more logical alternative if you're driving a vehicle with enough room, like say a van, or a large truck.

Optional: Both methods can also be accompanied by having a Mexican subwoofer along.
Ex 1: FFS, man someone tell that Mexican car stereo back there to shut up!! I'm trying to enjoy our new system here!

Ex 2:
Doug: Now what, Wayne? How are we supposed to enjoy our trip on the open road now that the fucking border cops have found our Mexican car stereo and dumped 'em all in the Rio along with all their mariachi gear?
Truck Driver: No worries, Doug, at least we've got a little somethin' for ya to play an equally pleasing tune on. *unzips pants*
Doug: Awwww yeah. *goes down on truck driver's lap*

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Mark H. Bringing you more funny defs since February 2004.
by Mark H November 17, 2006
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When you are fucking a girl while fingering her butt and realize there is shit on your finger and stick it in her mouth to clean the dookie off.
I stuck my finger in beckies ass and there was shit on it, so I had to give her a mexican car wash.
by mrskunkbutt October 26, 2017
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