by Chieftank January 2, 2019

back wash is when someone drinks out of a bottle or container that more than one person is drinking from and pour some of the beverage from their mouth back in, or the worst part Saliva/spit, or really be both. thats why everyone needs to pour their own glass. and dont let your kids drink out the juice jug. can cause hiv and aids if someone is infected. etc anything like that.
by Megasus Thirst Jesus Christ April 21, 2022

Ass Wash is a reagent used mainly for cleansing and/or scrubbing ones posterior, but also has wildly interesting applications in the paralysis of C. elegans for scientific study.
Bobby: "Man, that Ass Wash is some really good stuff!"
Frank: "Wait, what do you mean 'ass wash'? What is that?"
Bobby: "I was using my buddy's ass wash and it really cleaned me up good. Plus it helped me image my worms!"
Frank: "Wait, what do you mean 'ass wash'? What is that?"
Bobby: "I was using my buddy's ass wash and it really cleaned me up good. Plus it helped me image my worms!"
by ElephantLitter October 9, 2014

by brightwhiteappl November 5, 2009

by crazylion May 1, 2014

For a female be totally brainwashed because she is having sex with someone. Male version pussy washed.
by Big Loulou August 20, 2013

Charles is always saying that he is washing the chicken when I try to introduce him to my ugly sister-in-law
by justahappyguy June 6, 2015
