螳臂擋車 (tong4 bei3 dong2 ce1) — overate oneself and try to hold back an overwhelmingly superior force (lit., "a mantis trying to stop a chariot") in Cantonese
tongˎ₄螳bei˗₃臂dongˊ²擋ceˉ¹車简 螳臂挡车
Mandarin Pinyin: tang2 bi4 dang1 che1
Meaning of 螳臂擋車
nounoverate oneself and try to hold back an overwhelmingly superior force (lit., "a mantis trying to stop a chariot")