bubnuti

1. colloq. to blurt out
   Šta si to sad bubnuo? — What did you just blurt out?
   Bubnula je glupost pred celim odeljenjem. — She blurted out something stupid in front of the whole class.
2. colloq. (+ acc.) to hit; to punch
   Bubnuo ga je pesnicom u rame. — He punched him in the shoulder.
3. colloq. to crash; to bang; to thud
   Bubnuo sam glavom o vrata. — I banged my head on the door.
   Knjiga je bubnula na pod. — The book thudded to the floor.

In the sense "blurt out" it usually takes an object: bubnuti glupost.