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] 丈二和尚,摸不着头脑 Trad. 丈二和尚,摸不著頭腦 zhàng èr hé shang ...