雞ㄐㄧjī蛋ㄉㄢˋdàn碰ㄆㄥˋpèng石ㄕˊshí頭ㄊㄡ˙tou

  1. （諺語）​比喻自不量力。如：「你單獨向那群流氓挑戰，簡直是雞蛋碰石頭。」

英lit. an egg colliding with a rock (idiom)​, fig. to attack sb stronger than oneself, to overrate one's abilities