螳臂当辕 tángbìdāngyuán to overrate oneself Origin Definitions Defs Strokes Stroke Words Sentences Sents 螳 táng mantis (bound form) mantis; used in 螳螂 tángláng or the idiom 螳臂当车 tángbìdāngchē臂 bì forelimb the forelimb of certain animals, such as a mantis or ape当 當 dāng verb to withstand To withstand; to resist; to match equally辕 轅 yuán shafts The long wooden poles at the front of a cart or carriage used for hitching animals.