A large gathering of rednecks or hicks.
Not necessarily from Alabama, yet displaying the plumage of that pocket of civilization, mainly Nascar hats and filth. An Alabamarama can usually be spotted at tailgates, racetracks, WalMart,and on COPS.
It is not a good idea to come too close to an Alabamarama as you may end up bathed in tobacco-juice and/or the fumes of a meth lab.
Chris: " Look at the size of that Alabamarama... I can almost feel my intelligence being sucked out by it's gravitational pull..."
Mike: "ah-hyuuhh..Dale Earnhardt wuz gawd."
Chris: " OH NO!!! They got you too dude!!"