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7.
The act of simultaneously pressing the left and right arrow keys on the keyboard whilst playing Bubble Trouble (on Miniclip). Usually appears to be a swift back and forth motion or sliding dance.
kid1: dude quit doing the grumble and play the game!!!
kid2: but you totally stole all my bubbles!
by fromthesaad October 10, 2010
 
1.
Pornographic materials such as magazines, internet sites or videos
Anders: Where's Warby?
Merrell: Oh he's upstairs on the computer looking at grumble
by thats a negatory June 10, 2005
 
2.
To complain somewhat pointlessly. Grumbling usually consists of merely bemoaning an unfortunate/unfair situation instead of attempting to come up with a solution.
And so he's still grumbling about being picked off of third two innings ago, and whaddayaknow, he gets picked off again!
by Diggity Monkeez May 20, 2005
 
3.
A contracted form of the Cockney rhyming slang 'grumble and grunt'. I refers in an unsavoury way to an eligible female.

You may not like it but it's out there as part of our urban linguistic culture.
Certainly in use in the 1960's
"I'm going out on Friday night to pull a bit of grumble".
by ian wilman January 14, 2005
 
4.
noun:

1) One who prematurely denies a correct response only to come full circle and carefully explain the same answer
2) One who is easily mistakable for a person of a lesser education level
3) One who may become moist at the sound of the Orphan Whisperer's voice
Lecturer: Blah, blah, blah
(Upon entering lecture hall) Student 1: Why is the secretary standing on the stage with a microphone...
Student 2: Hah, hah, hah
Student 1: Oh my gosh, that's Grumbles?
Student 2: Hah, hah, hah
by Jack O'Sniles September 18, 2009
 
5.
Hunched over, kleenex in one hand, cock in the other. Adopting a similar position to a grumbling old man
"Wheres Steve?"
"Oh, hes upstairs having a quick grumble before we go out"
"He's allways fucking grumbling"
by ShavenLunatic October 29, 2003
 
6.
The lava like substance that is found in the Grumble Volcano level of Mario Kart Wii. Can also be used to mean anything that would be undesirable to fall into.
When the green shell knocked me off the race track, i fell right into the Grumble.
by jonyd94 December 29, 2009