slapdown

Short definition from Wiktionary

Noun

1. 1
   An instance of slapping down, especially a humiliation or rejection.
2. 2
   The period after the initial impact of an object with a surface through the subsequent impact of the object on that surface, as an aircraft landing or a container falling.
3. 3
   The impact of a layer of earth falling after having been lifted by an explosion or an earthquake or similar large-scale disturbance.