guilt shower 

(n) When someone is so ashamed of somthing they did (usually the night before) that their guilt feels like physical dirtiness, leading them to take a long, thorough shower. Generally follows a walk of shame or one night stand.

Girl:I had to take 45min guilt shower after hooking up with that guy from the bar ):

or

Text to friend:Cheated on my gf last night but my water is broken, can I come over for a guilt shower?

guilt shower by UDallday August 22, 2009

Guilt Showering

The process of showering after having sex with or messing around with someone you later regret. it is often done more than once, and can be a sort of therapy. it is a psychological way of removing all traces of those people you regret being with, by "washing them off."

" On Friday I got so drunk and slept with Ian, I've been guilt showering ever since."

Guilt Showering by annthepixie_ November 20, 2016