疊床架屋 [叠－－－]

Jyutping dip6 cong4 gaa2 uk1
Pinyin dié chuáng jià wū

Definitions (Wiktionary)
  1. phrase, figuratively, idiomatic
    repetitious; needless duplication
    (syn.) 架屋叠床, 架床疊屋, 架床叠屋, 架屋疊床