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An alligator. They're called Florida speed bumps by locals in non-metro areas of Florida because alligators tend to use the sunlight heated roads as heat rocks. They sprawl out across the middle of the road, and serve as a huge, scaly, armor plated speed bump. The bigger ones will not flatten if you hit them, it will just tear up your car real good.
Dale - "Hey Jamie, what the hell did we just hit?"

Jamie - "I reckon we just hit one hell of a Florida speed bump!"
by ConfederateFlorida September 21, 2009

Words related to Florida Speed Bump

alligator bump city crocodile florida miami scat speed