Germumbling 

Adj: A unintelligible grouping of words that sound like your mumbling in German or some other language that cannot be deciphered by the listener.

I was standing in line next to this dude who was germumbling about about the fly new 10 speed he just picked up on Craigslist.

Germumbling by Starstutter October 31, 2011

Grumbling Midget 

An angry dwarf that is easily thrown around with the use of a cannopult, sling shot, cannon, golf tee, or mule.

Alex was being a grumbling midget so I sent him on a mule to Arizona.

Grumbling Midget by lasdjflasdjflasdjkf May 30, 2006

grumblingly 

adv. The party is very reluctant to perform a task, but due to outside pressures (peers, managers), feels like he/she has no choice but to do it.

Keith grumblingly implemented a piece of code from Facebook on his website to make his marketing department happy.

grumblingly by todayandtomorrow November 3, 2020

grumbling

Someone who is making a groaning sound (non sexual)

Jerry stop grumbling your starting to sound like a grump-a-lump!

grumbling by hoohoo22 August 1, 2015