[ bùzhīsuǒyún ] do not know what oneself (self deprecatory) or others are talking about; incomprehensible; be unintelligible; between the devil and the deep sea; be unable to make out what sb. is driving at [talking about]; embarrass with [by]; fail to catch what one means; feel oneself in an awkward position; feel oneself in a false position; lose one's head; make neither head nor tail of what's been said [written]; not to have the slightest idea about the meaning of some remarks; : 这篇文章条理不清, 使人看了不知所云。 the article is so poorly-organized that i don't know what to say after reading it