Rejoinder (n)

Rejoinder: quick or witty reply
Synonyms: answer, reply, response, retort, riposte, counter, sally
Usage: He expressed his disapproval with a curt rejoinder.

Riposte (n) : 1. A quick thrust given after parrying an opponents' lunge in fencing.
        2. A retaliatory action, maneuvers, or retort.

Riposted/reposting/ripostes:
To make a return thrust.
 

1. To retort quickly.