(idiom) Literally Zhang Fei fights Yue Fei; an impossible combination or a situation where people from different eras or backgrounds are mixed up

The punchline of the pun Zhang Fei (Han dynasty) fights Yue Fei (Song dynasty), which is [[杀得满天飞|殺得滿天飛|sha1 de5 man3 tian1 fei1]], a pun on chaotic fighting

literally "Zhang Fei threads a needle"; a two-part allegorical saying meaning that because the legendary warrior Zhang Fei had huge eyes and the eye of a needle is tiny, he could only stare at it; describes people staring at each other in bewilderment, having no idea what to do, as in the phrase [[大眼瞪小眼|大眼瞪小眼|da4 yan3 deng4 xiao3 yan3]]