1 definition by BrianBrianBrianBrianBrianBrian

Top Definition
To play music with extreme intensity whereby the likelihood of causing public disruption is inevitable.

The phrase relates loosely to Master P's song "Make 'Em Say Ugh" (Na-nah na-NAH).
"I think my friend's upstairs neighbor wants to kill him after we were Bumpin' the Nah for about 2 hours at 3AM last night haha."
by BrianBrianBrianBrianBrianBrian November 12, 2009

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