穿一條褲子 [－－条裤－]

Jyutping cyun1 jat1 tiu4 fu3 zi2
Pinyin chuān yī tiáo kù zi

Definitions (CC-CEDICT)
  1. (of male friends) to have been through thick and thin together
  2. to be like family
  3. to share the same view of things