[tóu luǎn jī shí]   

投    卵    击    石    比喻不自量力，自取失败。

[tóu luǎn jī shí]比喻不自量力，自取失败。感情色彩：褒义词语法用法：作宾语、定语；用于处事

Court defeat by fighting against overwhelming odds

投畀豺虎    投鼠忌器    投河觅井    投阱下石    投机取巧