Jamaican Car Wash

Act of driving one's car into a rain storm, smoking a joint, and shampooing one's car. Bonus points for listening to bob marley or aer.

Tim: Did you hear that storm last night? I about shit my pants from the thunder and lightning.
Kevin: Actually I took out my 64 dodge drango with a scoop of the half I just picked and had myself a good ol' Jamaican Car Wash. Denise from middle school even came out , it was wild bro and my whip has never been so clean!;)
Tim: Word