ZINGER

A very rapidly moving object, especially one that is thrown.

"The pitcher threw a real zinger and struck him out."

A surprising or unusually pointed, humorous and impressive insult or insulting quip.

"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.

"I was still reeling from the zinger of seeing my ex on a date with my best friend."