noun
poison fang
Literal meaning: the fang of a venomous animal, especially a snake.
ヘビは毒牙で獲物に毒を注入する。
The snake injects venom into its prey with its poison fangs.
noun
sinister ways; crooked means; clutches
Figurative use, often in the phrase 毒牙にかかる (to fall victim to someone's evil schemes). Describes underhanded tactics or being ensnared by a malicious person.
See also: 毒牙にかかる (どくがにかかる)
彼は詐欺師の毒牙にかかって全財産を失った。
He fell into the clutches of a swindler and lost his entire fortune.
悪質商法の毒牙
We must protect the elderly from the sinister ways of fraudulent business practices.