A search that brought someone to my blog this morning. What makes a person ask that question? You find a licking sound disgusting, but that's not the end of it. You ask why. That could be the beginning of some young person's serious intellectual exploration of human psychology. Or it could be just the next random thing that was just interesting enough to somebody who already had his fingers on the keyboard to do a little Google search.
By the way, the blog post of mine that came up in this Google search is quite helpful, giving you a key word: misphonia.
Bonus: Dog tongue pic, by Meade: