Grumpy Milkshake 

a hand job given by someone who is in a particularly bad mood.

My girlfriend was in such a bad mood last night but at least she still gave me a Grumpy Milkshake

Grumpy Milkshake by BNBears June 9, 2025

Grumpy Stumper

A Poo in the toilet bowl that sinks to the bottom and is sturdy enough to poke through the top of the water.

"Rambo looked into the toilet to discover his creation poking proudly through the bog like an island in the middle of a murky swamp. Thats a sturdy grumpy stumper."

Grumpy Stumper by Exotrine August 1, 2025

GRUMPY LEMLEY 

verb - The unfortunate act of farting in the shower so foul that you're forced to wash yourself all over again like you're resetting your entire day.

Bro, I was almost done rinsing off, then pulled a Grumpy Lemley and had to start from scratch.

GRUMPY LEMLEY by The Duke of Disgust August 6, 2025

Dropped a Grumpy 

Dropped a turd; passed your bowels

The party was raucous. So many stoned people! Somebody even "Dropped a Grumpy" on the bed!

Dropped a Grumpy by talk2me-JCH2 April 20, 2022

rip a grumpy 

to take a shit

a soon as i finished my coffee iran to the bathroom to rip a grumpy

rip a grumpy by havalaf October 5, 2009

dropping a grumpy 

A polite way of saying that you’re shitting a massive turd. One of which causes you to make an angry face.

After eating that second helping on taco Tuesday, Jeff was in the bathroom for a good hour dropping a grumpy.

dropping a grumpy by anonymous July 1, 2021

Dump a grumpy. 

To defecate.

Every morning I dump a grumpy.

Dump a grumpy. by Archibald H. Wigglesworth December 17, 2008