Dirty Soap 

Dirty Soap is defined as the bar of soap in your shower you just used to wash your hands with after masturbating in the shower.

"Just throw that dirty soap out, it's no good anymore."

Dirty Soap by I NEVER DO THAT! June 18, 2008

Dirty Soap Dispenser 

When ejaculated in the participant's anus tell them to Bend over (rub hands together) wait till the load comes out like soap & rub it in like you're washing your hands with soap.

I gave her the dirty soap dispenser then I dried my hands off using her face.

Dirty Soap Dispenser by @HotSaucePapi April 9, 2015

dirt soap 

Ineffective or unsuccessful.

Alternatively: wrong and/or cringe; leaving you feeling dirty afterward

That recent ad campaign was dirt soap. We'll have to take another approach next time. /or/ That show is dirt soap, I always feel yuck after watching it. /or/ Sorry, that information is dirt soap, you should do your research. /or/ Ew, that's dirt soap.

dirt soap by Eloraborealis January 22, 2023