tattle tattle /ˈtætəl/

noun

1. Disclosing information or giving evidence about another  ( singing [Informal] , tattle , telling )
   disclosing information or giving evidence about another
   
   

verb

1. Divulge confidential information or secrets  ( babble , babble out , blab out [Informal] , blab [Informal] , let the cat out of the bag , peach [Informal] , spill the beans , tattle , give the game away , sing [Informal] , talk )
   divulge confidential information or secrets
    Be careful--his secretary talks
   Be careful--his secretary talks
   
2. Speak (about unimportant matters) rapidly and incessantly  ( blab [Informal] , blabber [Informal] , clack [Informal] , gibber , maunder , palaver [Informal] , piffle , prate , tattle , chatter , gabble , prattle , tittle-tattle , twaddle [Informal] , twattle [Dialect, UK] , witter [Informal, British] , yabber [Informal] , yatter [Informal, British] )
   speak (about unimportant matters) rapidly and incessantly