banger

The word 'banger' is a derivative of the onomatopoeic verb 'bang,' which imitates a sudden, loud explosive sound. The agent suffix '-er' transforms this sound into a noun denoting something that produces such a noise. This logical construction first applied to fireworks or guns. Its application to sausages is British slang from the early 20th century, humorously alluding to the popping sound they might make when fried. The later, seemingly disparate meanings for an old car (from backfiring noises) and a hit song (from being "explosively" popular) are both figurative extensions of this core concept of impactful sound.

Structure: bang (sound) + er (agent/instrument suffix) • bang: From Old Norse banga (to hammer), of imitative origin. It functions as the core root conveying the sense of a sudden, loud noise or impact. • er: A native English suffix from Old English -ere, -or, of Germanic origin, used to form agent nouns (one who does) or instrumental nouns (a thing that does). Here, it forms an instrumental noun meaning "a thing that bangs."