(fig.) banquet set up with the aim of murdering a guest
refers to a famous episode in 206 BC when future Han emperor Liu Bang 劉邦|刘邦[Liu2 Bang1] escaped attempted murder by his rival Xiang Yu 項羽|项羽[Xiang4 Yu3]
Definitions (粵典–words.hk)
名詞
不懷好意、居心不良嘅邀請 an invitation from somebody with malicious intentions
Definitions (Wiktionary)
noun
social gathering (e.g. a party or meeting) with conspiracy against its guest; malicious invitation; trap
他為人狡猾，我看你還是不要去赴那鴻門宴吧！
他为人狡猾，我看你还是不要去赴那鸿门宴吧！
tā wéi rén jiǎo huá ， wǒ kàn nǐ hái shì bù yào qù fù nà hóng mén yàn ba ！ He is treacherous, so I think you had better not accept his invitation.
Definitions (Kaifangcidian)
（沒有對應漢語詞彙）
Examples (Wiktionary)
Mandarin
他为人狡猾，我看你还是不要去赴那鸿门宴吧！
他為人狡猾，我看你還是不要去赴那鴻門宴吧！
tā wéi rén jiǎo huá ， wǒ kàn nǐ hái shì bù yào qù fù nà hóng mén yàn ba ！
He is treacherous, so I think you had better not accept his invitation.
He is treacherous, so I think you had better not accept his invitation!