1. 香肠
Bangers are sausages.

2. 老爷车；破旧的汽车
You can describe a car as a banger if it is old and in very bad condition.

3. 鞭炮；爆竹
Bangers are fireworks that make a lot of noise.

1. firework consisting of a small explosive charge and fuse in a heavy paper casing

Synonym: firecrackercracker

2. (British informal) pork sausage