顧得頭嚟腳反筋 [顾－头－脚－－]

Jyutping gu3 dak1 tau4 lai4 goek3 faan2 gan1
Pinyin gù dé tóu lí jiǎo fǎn jīn

Definitions (CC-CANTO)
  1. to attend to one thing and lose another; to focus on one thing and neglect another thing; to pay attention to one aspect and overlook another