Definition
To complain somewhat pointlessly. Grumbling usually consists of merely bemoaning an unfortunate/unfair situation instead of attempting to come up with a solution.
Example Usage
And so he's still grumbling about being picked off of third two innings ago, and whaddayaknow, he gets picked off again!
Origin
Urban Dictionary
Related Terms
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See “Grumble” in Corporate Speak, Gen-Z Slang, Pirate Speak, and more.
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