bar·rack
 /ˈberək/  verb  , -racks, -racked, -rack·ing
  1 Brit : to bother or interrupt (someone, such as a performer or speaker) by shouting comments or criticism
   [  + obj  ] The crowd barracked [=heckled] the visiting team.
   [  no obj  ] The crowd barracked in protest as she gave her speech.
  2 [  no obj  ] chiefly Australia : to shout in support of a person or group
  — often + for
   barracking [=rooting, cheering] for the home team
  barracking  noun   [  noncount  ]
   She got a lot of barracking during her speech.
  [  singular  ]
   She got quite a barracking during her speech.