Bøo hitlø khazhngf, sviu bøeq ciah hitlø siariøh.

Bøo hitlø khazhngf, sviu bøeq ciah hitlø siariøh. (無彼號尻川，想欲食彼號瀉藥。)

to overestimate one's capabilities; to not know one's own limitations; to be overconfident