These are supposedly some sort of "Name the Flavor" campaign by Doritos. The "X-13D Flavor Experiment" is designed to have you, the "taster", sample the dorito and attempt to place the flavor by "naming" it via a web form. In practice, this "taster" sampled the "X-13D" flavor and couldn't place the flavor... He did, however, place the entire contents of the bag into the trash.

They taste like ketchup and hot dog water, and I'm not kidding.

The ingredients mention 3 types of cheese powder, onion powder and tomato powder, so I'm assuming they're supposed to be some variation on an italian flavor-theme... "Zippy Ziti" or something. But no, they taste like weiners and Hunt's.