[倒挂 / 倒掛, dào guàㄉㄠˋ ㄍㄨㄚˋ] lit. to hang upside down; fig. topsy-turvy and inequitable, e.g. manfacturing and trading costs exceed the sale price (of some goods); to borrow more than one can ever repay#25222
[八卦阵 / 八卦陣, bā guà zhènㄅㄚ ㄍㄨㄚˋ ㄓㄣˋ] lit. battle plan based on the eight trigrams (in legend); fig. a clever plan; a fiendishly complicated predicament#84018
[挂羊头,卖狗肉 / 掛羊頭,賣狗肉, guà yáng tóu, mài gǒu ròuㄍㄨㄚˋ ㄧㄤˊ ㄊㄡˊ, ㄇㄞˋ ㄍㄡˇ ㄖㄡˋ] to hang a sheep's head while selling dog meat (成语 saw); to cheat; dishonest advertising; wicked deeds carried out under banner of virtue
[炼丹八卦炉 / 煉丹八卦爐, liàn dān bā guà lúㄌㄧㄢˋ ㄉㄢ ㄅㄚ ㄍㄨㄚˋ ㄌㄨˊ] eight trigrams furnace to cook pills of immortality; symbol of the alchemist's art; Double, double toil and trouble; Fire burn, and cauldron bubble