I'm fairly certain its a word GSI made up for their hard anodized aluminum cookware and utensils. If you look up halulite the only things that return are GSI products.

According to GSI's website:

"Halulite says goodbye to scratches, burn circles and ounces. As light as Titanium, Halulite is a proprietary alloy that also conducts heat better and more evenly—so you can leave the extra fuel at home. Plus, every piece is Hard Anodized to create a surface that withstands scratches and abrasions like nothing else. It's ultra light without the sacrifices. Now that's smart."