1. And excellent website with babes, jokes, videos, and lol pics.
2. An interjection not listed in the English books. It makes the sentence stand out better, and leaves subjects that hear it with the "what the fuck/wtf?!" feeling. See holy flaming tennis balls batman for another great interjection. It is commonly subsituted for Wow! or Oh my god! or Holy Shit!
Guy 1: Wow! That house is on fire!
Guy 2: HOLY TACO! THAT HOUSE IS ON FIRE!
Guy 1: What the hell?!