The act of straddling a womans face, while wearing a kilt.
After the St Pat's parade this broad took me home and I gave her an Irish carwash.
by Qball671 November 15, 2009
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A hand-job done using shampoo, soap, dish detergent, or a similar substitute.

e.g. "Man did you hear how Sami's mom gave me a one-eyed cousin in the carwash last night?"
e.g. "Man did you hear how Sami's mom gave me a One-Eyed Cousin in a Carwash last night?"
by ASaad May 22, 2009
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When you lose control of your vehicle and crash into heavy bushes, thickets, forests, brush. Crashing into and through any heavy vegetation which might appear for a moment through the windshield to be similar to an organic form of the mechanical equipment that bushes cars at a car wash.
He was racing another car outside of town, lost control and flintstone carwash.
by b4ctom1 August 26, 2023
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So two friends went to the car wash to wash their car. And one of the girls got up on the car and started washing their “kitty”. An when she started doing so white stuff started cuming out so they started cleaning with it.
Omg she’s washing her car with carwash kitty.
by Carwash kitty November 20, 2021
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When one dedicates in another’s opened car sunroof.
Johnny left his sunroof open and Mike gave him a Chicago Carwash
by Butternts63 May 16, 2018
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Guy gets on top of his partner in the missionary position, but then slides his entire sweaty body across her face, pissing as his junk crosses, wiggling his junk back and forth to simulate an automatic carwash. Finish with a giant fart as the asshole crosses for a blown dry spot-free finish!

(Variation: Reverse Montana Carwash: You get the idea.)
Donald Trump's hair gives the most interesting sensation during a Montana Carwash!
by DonaldTrumpsMerken December 22, 2015
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