riposte
     n : a quick reply to a question or remark (especially a witty or
         critical one); "it brought a sharp rejoinder from the
         teacher" [syn: {rejoinder}, {retort}, {return}, {replication},
          {comeback}, {counter}]
     v : answer back [syn: {retort}, {come back}, {repay}, {return},
         {rejoin}]
Source: WordNet® 2.0