Translation guide
The English phrasal verb "bang on" has several distinct meanings. This guide covers the most common uses for learners: hitting something repeatedly, talking at length, and the British slang meaning of "exactly right."
To strike something repeatedly, often making a loud noise.
General verb for hitting or striking. Use with an object and often an adverb like 何度も (many times) or 繰り返し (repeatedly) to convey the repetitive sense.
To talk about something at length, often in a boring or annoying way.
Means to talk on and on tediously. Captures the annoying, repetitive aspect of 'banging on' about something.
彼は自分の成功についてくどくど話した。
He banged on about his success.
To be precisely correct or accurate. Primarily British informal usage.
A common way to say 'exactly right' or 'spot on.' Works in both casual and slightly formal contexts.
あなたの分析はまさにその通りだ。
Your analysis is bang on.
Do not use 打つ (utsu) or 叩く (tataku) for the meaning 'to talk persistently.' These verbs mean physical hitting. Use phrases like くどくど話す or しつこく言う instead.
The meaning 'exactly right' is primarily British slang. In American English, 'bang on' is rarely used this way. The Japanese equivalents provided are neutral and can be used in any English-speaking context.
彼はドアを何度も叩いた。
He banged on the door repeatedly.
Onomatopoeic expression mimicking the sound of banging. Very natural for describing loud, rhythmic knocking or pounding.
誰かが窓をドンドン叩いている。
Someone is banging on the window.
To strike against something forcefully. More intense and often used for objects hitting surfaces, not just knocking.
嵐で雨戸が壁に打ち付けられた。
The storm banged the shutters against the wall.
Literally 'to say persistently/insistently.' Used when someone keeps bringing up the same topic.
母はいつも片付けなさいとしつこく言う。
My mom is always banging on about tidying up.
Simply means 'to talk at length.' Less negative than the others, but can be used for 'banging on' if the length is the issue.
彼は趣味について長々と話した。
He banged on about his hobby for ages.
Means 'exactly right' or 'perfect fit.' Very casual and natural for describing something that is precisely correct.
その答えはピッタリだね。
That answer is bang on.
Literally 'without a hair's breadth of difference.' Very precise and somewhat formal/literary. Emphasizes absolute accuracy.
彼の予測は寸分違わず当たった。
His prediction was bang on.