Shower-sinking 

When someone that has stayed at your home really wants to shower, but doesn't feel like making their way back home yet. So instead they decide to use a sink in your house just to wash their hair, so they can continue doing social things without having to look like a scumbag

Can also be preformed at your own home by yourself when you're either:
A. Straight up lazy
B. In a rush

Man.. I really want to shower but I'm too hungover to walk back to my house right now. Is it cool if I do some Shower-sinking in your kitchen?

Shower-sinking by Jabuuu August 6, 2010

shower singing

It is the time when you are in shower and you are actually trying to sing well.

You think I sing bad, but you’ve never heard me shower singing.

shower singing by Toomoyst May 10, 2018

Singing in the shower 

When your in the shower and you think your singing good but you actually sound like a dying whale.

"I was singing in the shower this morning!"
"Do you guys ever sing in the shower?"

Singing in the shower by Brisimonetti November 13, 2014

Singing in the shower 

A concert, with the echo sound effects and the smoke machine, but without the fans. Or talent.

I was singing in the shower the other day, brought the house down

Singing in the shower by Brickdictionary118 October 20, 2013