To remove the chemical smells left over by cheap manufacturing processes.
"That looks like an okay blender, but be sure and wash the China out of it."
Rinsing off the dishes and then putting them at the bottom of the clean ones.
if you are in a hurry to go someone and you have a bunch of dirty dishes, ghetto dish washing would be the answer.
When you take a bowel movement and a shower in the same trip to the bathroom.
"Dude, I just had the quickest dump n' wash ever!"
"15 minutes? Shit. I better pull a dump n' wash."
To cover your truck and / or other 4x4 vehicle and maybe yourself in mud.
Guy 1: "Hey wanna go muddin Saturday?"
Guy 2: "Sure, my truck could use a redneck car wash."
When you don't shower and only clean yourself with deodrant
That person smells he just have had a black mans wash
To soil ones clothing, then attempt to make the stain seem recent by using an empty container of the item spilled as an accessory.
John: " U don't even have coffee in that cup do u?"
Chuck: "what?!"
John: "Yeah, ur just carrying around that cup to make it seems like u spilled that on urself today"
Chuck: "Ur good"
John: "I know all about Polish spray and wash"
When someone is giving a blowjob, and because of too much booze or other reason vomits on the cock. similar to the kentucky oasis
Tony: dude, you smell fucking rancid!
Matt: yeah, she drank too much last night at the bar, and then gave me a Kentucky Pole Washing