鸡蛋碰石头

鸡蛋碰石头 [jī dàn pèng shí tou]

1. ■ throw an egg at a rock; an egg itself against a rock; attack sb. far stronger than oneself; like an egg striking a rock -- only to cause its own destruction:

鸡蛋怎能碰得过石头， 还不是自寻死路。 They're just like eggs hurled against stone; they're heading for their doom.