Sex Act in which you eat a Doritos Locos Taco from Taco Bell (Nacho or Fiery, Lover's Choice), and perform oral sex with the unswallowed, masticated, moist remains until climax, at which point your lover exclaims Sour Cream.

When you eat dirt for the first time and leave your family to build a shack in the woods

the act of putting 2 or more substances in your mouth and vigorously shaking your head then swallowing