zinger
noun
Definitions
A very rapidly moving object, especially one that is thrown.
Example: The pitcher threw a real zinger and struck him out.
A surprising or unusually pointed, humorous and impressive insult or insulting quip.
Example: My little niece let fly with the zinger that my sister was pregnant again.
An event that when experienced leaves the witness dazed, either physically or metaphorically.
Example: I was still reeling from the zinger of seeing my ex on a date with my best friend.
An outstanding, energetic and surprising thing or person.