newspapers that use their editorial pages to 'bash' [=harshly criticize] the president
The children are 'bashing away' [=('US') 'banging away'] at their homework.
groups accused of gay 'bashing' [=criticizing or attacking gay people]
(..) and thrust back to perdition! And as long as I have teeth, I will bite you, and if I have no teeth, I will gum you! And as long as I have fists, I will bash you! Now, get out of here, ghost! Get out of here, ghost! Get out of here, ghost! And it left! -Hallelujah! (..)2007 There Will Be Blood