ㄅㄠˋㄏㄨˇㄆㄧㄥˊㄏㄜˊbàohǔ‑pínghé

暴虎冯河
  1. 空手搏鬥比喻有勇無謀魯莽 暴虎馮河作風大事」。

lit. fight tiger bare handed and wade rivers (idiom)​; fig. bull-headed heroism