The body's preparation for a sneeze, which is deferred just before climax. (The "ah... ah... ah" without the "choo"). The feelings and sensations of a sneeze come to you, but just as you are about to exhale with explosion, it miraculously disappears.
An incomplete sneeze that leaves the would-be sneezer with a feeling of frustrating non-consummation (as sneezing activates the same parts of the brain as an orgasm). Also: A person who talks a potential sneezer out of the completion of a sneeze.
As a sneeze tease, she took pleasure in coaxing her friends out of their impending sneezes: "It's OK, look at me, you can do it, you don't have to sneeze..." (Try it, it works.)