bang at

bang (away) at

1. To strike something repeatedly. Quit banging away at the door, I'm coming! I banged away at that nail and still can't get it to go into the wall.
2. To mention or reference something repeatedly. That film really bangs away at the idea of social justice.
3. To work steadily on a project or assignment. I'm banging away at this report so that I can finish it tonight.
See also: bang
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

bang (away) at something

to hit at something repeatedly, causing harm or making noise. Someone is banging away at the door. Stop banging at the door.
See also: bang
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
Police have confirmed Bang and Jang met at a dinner party hosted by Bang at an upscale Chinese restaurant in October 2007.
Gary Wilmot plays Caractacus Potts in Chitty Chitty Bang Bang at the Hippodrome.