blab
     v 1: divulge confidential information or secrets;  "Be
          careful--his secretary talks" [syn: {spill the beans}, {let
          the cat out of the bag}, {talk}, {tattle}, {peach}, {babble},
           {sing}, {babble out}, {blab out}] [ant: {keep quiet}]
     2: speak (about unimportant matters) rapidly and incessantly
        [syn: {chatter}, {piffle}, {palaver}, {prate}, {tittle-tattle},
         {twaddle}, {clack}, {maunder}, {prattle}, {gibber}, {tattle},
         {blabber}, {gabble}]
     [also: {blabbing}, {blabbed}]
Source: WordNet® 2.0