解釋◎ 爬灰 páhuī
[an affair between the father and his daughter-in-law] 俗指公公跟兒媳婦通奸。也作“扒灰”
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國語(yǔ)辭典爬灰
公公奸污媳婦?！都t樓夢(mèng)．第七回》：「那里承望到如今生下這些畜生來(lái)，每日家偷狗戲雞，爬灰的爬灰，養小叔子的養小叔子，我什么不知道！」也作「扒灰」。
英語(yǔ) incest between father-in-law and daughter-in-law, also written 扒灰
法語(yǔ) inceste
? 漢典