穿一條褲子 [ㄔㄨㄢ ㄧ ㄊㄧㄠˊ ㄎㄨˋ ˙ㄗ; chuan1 yi1 tiao2 ku4 zi5] (of male friends) to have been through thick and thin together to be like family to share the same view of things ◄ ►