monkey metal

Noun

derogatory slang

(slang, derogatory) Any cheap metal alloy, often with zinc, that is easy to cast.

Japanese Meaning

安価で粗悪な金属合金。特に亜鉛などが多く含まれ、鋳造が容易な低品質な合金を指す俗語表現。

The vintage lamp's ornate trim turned out to be monkey metal and cracked under the slightest pressure.

そのビンテージランプの装飾的な縁は安物の亜鉛合金で、ほんのわずかな力で割れてしまった。

Sense（1）

(slang, derogatory) Any cheap metal alloy, often with zinc, that is easy to cast.