Nantoka/苦窑kǔ yáoTraditional: 苦窯苦窑 (kǔ yáo) is a Chinese word meaning “(slang) prison”.Meanings1(slang) prisonCharacters in 苦窑苦kǔ · bitter窑yáo · kilnRelated words痛苦pain辛苦exhausting苦bitter艰苦difficult受苦to suffer hardship苦难suffering苦恼vexed苦苦strenuously挖苦to speak sarcastically苦头sufferings刻苦hardworking苦衷secret troubleStudy Chinese with flashcards →