司马昭之心路人皆知 sīmǎzhāozhīxīnlùrénjiēzhī an open secret Definitions Defs Origin Strokes Stroke Words Sentences Sents 司马昭之心 司馬昭之心 sīmǎzhāozhīxīn everyone knows your game An ambition or conspiracy that is obvious to everyone; used to describe a plot that is so blatant it requires no explanation路人皆知 lùrénjiēzhī known by everyone (idiom) understood by every passer-by; well known to all; a household name