aufblitzen

verb
  1. To flash or gleam suddenly and briefly; to appear quickly and then disappear. verb
    A smile seemed to aufblitzen across her face before she returned to her serious expression.
    The headlights of the car aufblitzed in the distance as it turned the corner.
  2. To become visible or apparent for a short moment, often used metaphorically to describe a sudden realization or emotion. verb
    An idea aufblitzed in his mind, providing the solution he had been searching for.
    A look of recognition aufblitzed in her eyes as she remembered where she had seen him before.