bob·by pin
noun/ˈbɒbi pɪn/
/ˈbɑːbi pɪn/
(North American English) (British English hairgrip, grip)
- a small thin piece of metal or plastic folded in the middle, used for holding the hair in place
中间折叠的一小块薄金属或塑料，用于将头发固定到位 Word Origin1930s: from bob ‘the hairstyle’ (because bobby pins were originally used with bobbed hair) + -y.