真的會砰一聲的東西
這一組是字面義：東西真的發出聲音，名字就從那個聲音來。
noun · B2
A firework whose whole point is a loud bang, not light or colour. Used mainly in Britain.
爆竹；響炮
核心畫面
Start with the sound: one loud, flat BANG, close enough that your shoulders jump. Add -er to bang and you get a name for whatever made it — the thing that bangs. That is the whole machine behind this word. Sometimes the bang is real and in the air: a , a tired engine, a sausage splitting in a hot pan. Sometimes the bang is what a thing does to you rather than to your ears: a song that lands like a punch. The word never describes something quiet, careful or gentle, in any of its uses.
先從聲音開始：砰的一大聲，近到你肩膀會縮一下。bang（砰）加上 -er，就成了「發出那一聲的東西」的名字。這個字的…更多收起
先從聲音開始：砰的一大聲，近到你肩膀會縮一下。bang（砰）加上 -er，就成了「發出那一聲的東西」的名字。這個字的機制就這麼簡單。有時候那一聲是真的、聽得到的：煙火、老引擎、熱鍋裡爆開的香腸。有時候那一聲比較像打在你身上的感覺：一首歌一放出來，像被打了一拳。可以注意的是，不管哪一個意思，它從來不會拿來說安靜、細緻、溫柔的東西。From the word’s history
bang + -er, the thing that bangs. Wiktionary adds the sausage story: the sausages had so much water in them and such tight skins that they could burst in the pan unless you pricked them first.
banger 就是 bang（砰）加上 -er，字面是「會砰的那個東西」。Wiktionary 另外記了香腸的由來：早期的香腸水分多、外皮又密，下鍋不先戳洞就會爆開。所以連食物也被那一聲命名了。
Wiktionary entry for banger, etymology_text supplied in packet (source_ref kaikki:3f6f69a190036ae4:689163234:28436)
Three branches
在鍋裡爆開的香腸
一樣來自那一聲，但走的是自己的一段小故事，不是從煙火或車子比喻過來的。
noun · B2
A sausage. This is a friendly, everyday word used mainly in Britain, Australia and New Zealand.
香腸
猛到讓人震一下＝超讚
這一支把那一聲從耳朵搬到感受上：東西不必真的響，只要打得夠重就算。
noun · B2
A song that hits hard and is really good — loud, fast and exciting, especially in hip-hop or dance music. People also use it for anything else they think is excellent: a film, a game, a meal, a post online.
超讚的歌；很猛的東西