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Jyutping si6 ji4 maa1
Pinyin shìr mā

Definitions (Wiktionary)
  1. noun, colloquial, derogatory
    fussy person; high-maintenance person; drama queen

事兒媽 [-儿妈]

Jyutping
Pinyin shì r5 mā

Definitions (CC-CEDICT)
  1. (coll.) fussbudget
  2. pain in the ass