落頭毛 [－头－]

Jyutping lok6 tau4 mou4
Pinyin luò tóu máo

Definitions (Wiktionary)
  1. verb, Min-Nan, verb-object
    to lose one's hair
    (syn.) 脱发, 脫髮
  2. noun, Min-Nan
    alopecia; trichomadesis