Giorno's Piano 

A piano piece that will play when your about to get fucked up

bad guy: "HA HA YOU CANT BEAT ME!"
Giorno: "I, Giorno Giovana have a dream!"
* Giorno's piano starts playing
Bad guy: *gets "muda muda muda muda" to death

Giorno's Piano by shgouadusgaiud November 7, 2019

Playing your mom’s piano 

Vaginal intercourse with someone’s mother.

“Hey Leo, I’m playing your mom’s piano right now!” “Fuck you Oliver!”

Playing your mom’s piano by anonymous April 20, 2022

poor man's piano 

A bowl of beans.

Very old expression.

For dinner, William had a poor man's piano. After dinner, he seranaded the railroad gang.

poor man's piano by Bumkicker Slade April 25, 2005

Piano Teacher's House 

A phrase used when something is so ridiculous it reminds you of your childhood piano teacher

Ever since the fire Bob has been acting crazy...this is such a "Piano Teacher's House" Moment

Piano Teacher's House by fartpoopdutycaca March 28, 2023

Mastro's Piano Bar 

An over-the-pants hand job given by an older woman at the Mastro's Piano Bar in Beverly Hills.

Holy shit, did you hear Jim got a Mastro's Piano Bar from that cougar on Saturday night!?

Mastro's Piano Bar by John Henry Cabbott May 3, 2021

Piano String 

When a pubic hair blocks your pee hole causing pee to shoot sideways

I played a Piano String when I pissed and got pee on the toilet seat

Piano String by Wynonna Beaver February 18, 2018

Piano Sex

Line up several women across a king-size bed with their legs spread and their vagina facing a man, the man will proceed to shove 2-3 fingers into their vagina making them moan, he will next proceed to quickly finger each woman making a magical tune with the different moans.

My girlfriend said if I buy her a $10,000 diamond ring, Then I can have Piano Sex.

Piano Sex by Choade Weinner October 20, 2011