包袱底儿

bāofudǐr

(1) [方]

(2) [the most precious, usu.untouched possession of the family]∶指多年未用的或最珍贵的东西

(3) [a person's secrets]∶指个人隐私

别揭人家包袱底儿

(4) [one's best act in performance]∶最擅长的绝技

亮包袱底儿