I wish he wouldn't keep banging on about politics.
bang something ↔ out
1APMto play a tune or song loudly and badly on a piano
2to write something in a hurry, especially using akeyboard
bang somebody/something ↔ up
1SCJBritish Englishto put someone in prison
2American Englishto seriously damage something:
a banged-up old Buick
WORD FOCUS: hit WORD FOCUS: hit with your fist:punch, thump, bash with your open hand as a punishment:smack, spank, slap with a hammer:bang, hammer in order to get attention:bang, knock, tap, hammer accidentally:bump into, crash into, strike, bang, knock, collide (with) ➔ See alsohit
Definition from the Longman Dictionary of Contemporary English Advanced Learner's Dictionary.