This idiom is used to mean overrating(估計(jì)過(guò)高) oneself and trying to do what is beyond one's ability. The result can be nothing but failure.
春秋時(shí),衛(wèi)靈公請(qǐng)顏闔為太子之師,顏闔知蒯瞶為人陰險(xiǎn)兇殘,欲改其惡習(xí),導(dǎo)之正途,但恐遭殺身之禍,而問(wèn)於蘧伯玉。伯玉語(yǔ)喻之曰:“螳螂奮其臂以擋車(chē)輪,其不知否能勝任也,徒取滅亡耳。不可高估本身之力,而為太子之師。若自持己見(jiàn),必遭太子之嫌。是以務(wù)必小心從事。”顏闔從之,婉拒衛(wèi)靈公之請(qǐng)。
亦作“螳臂擋車(chē)”或作“螳臂當(dāng)轅”。