The rumbling cacophony of far-off Fireworks or Mortars, usually heard after the sun goes down.
Spouse: Is that Thunder?

You: Yeah, Redneck Thunder...
by A2endorser December 6, 2014
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(noun) When you think you hear thunder but you see no lightning and realize that it was just the engine of a large jacked-up truck. This happens commonly in the south.
(hears crackling sound) "Whoa!" "We should get out of the pool man, it must be storming. "

"Nah man, it's just redneck thunder, a bunch of people are headed to the mud bog. "

"Ah ok, we're fine then."
by guyinredshirt June 28, 2014
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