Idiom(s) section. beat/bang the drum (for somebody/something) (especially British English) to speak with enthusiasm in support of somebody/something bang/knock your/their heads together (informal) to force people to stop arguing and behave in a sensible way be banging, et cetera your head against a brick wall (informal) to keep trying to do something that will never be successful: Trying to reason with them was like banging my head against a brick wall.
Phrasal verb(s) section. bang about/around to move around noisily: We could hear the kids banging around upstairs. bang into something to crash into or hit something by mistake: I banged into a chair and hurt my leg. bang on about something (British English, informal) to talk a lot about something in a boring way. Synonym - GO ON: He keeps banging on about his new job. bang somebody <-> up (British English, informal) to put somebody in prison bang something <-> up (North American English, informal) to damage or injure something