竹筒倒豆子 [ㄓㄨˊ ㄊㄨㄥˇ ㄉㄠˇ ㄉㄡˋ ˙ㄗ; zhu2 tong3 dao3 dou4 zi5] to pour beans out of a bamboo tube to come clean to make a clean breast of things ◄ ►