It's when a girl {most preferrably an Asian) gives a man a horizontal sponge bath inside a "Massage Parlor".
"I recieved one hell of a Kansas City Carwash last night...my shoulder has never felt better," said the sailorm with a smile.
by Nick P. March 20, 2004
3 some with female 69. Anal sex with the one girl then, oral sex with the other girl, then back to the other girl vaginal sex, then alternating. Therefore "washing" your car.
Would you ladies be interested in a Kansas City Carwash?
by Butch Eeks January 27, 2008
alright, so you're doing this broad, you know, Kansas style, then you beat her beyond recognition with pool noodles, you know, those foam ones, and you return her to the ex-wife's house before dinner.
"my daughter bought me an ugly tie for father's day, so I brought her to the Kansas City Carwash, you know what i'm talkin about?"
by Bill Cosby July 21, 2004