### Clue: That's the very same sound! (4)
### Answer: SNAP 
 ### Explanation: Definition: That's the very same,sound
  Double defn:  1st:  Word to indicate you and someone have *the very same*,identical items or experiences, as in "me too!".  Derived from the children's card game, Snap; and 2nd:  Sudden sharp *sound* made by eg. snapping one's fingers, towel.