Anyone Know What this Connector is Called?

Not being a smartass, install a battery quick disconnect and make sure to always have a fire extinguisher in car with you.(not in trunk either)
And hell, if someone on here in the Bay Area is well experienced with electric I have no problem providing the beer, cash or whatever it takes to get you over here to help me out and make sure I don't have another almost fire when I go to put this back together. I can do the labor but I'm still real green when it comes to electrical beyond simply replacing wires.