mob cap

/หˆmษ’b kap/

IPA: /M AA1 B K AE0 P/

noun
  1. 1

    A plain cap or headdress for women or girls, especially one tied under the chin by a very broad band.

  2. 2

    (modern-day use) A disposable head covering with an elasticated band, worn for cleanliness in industrial settings.

Source: https://en.wiktionary.org/wiki/mob%20cap