zān​bǐ

to stick a brush in one's hair

簪笔 簪筆 zān​bǐ
to stick a brush in one's hair
(literary) to stick a writing brush into one's hair or behind the ear; traditionally done by court officials or scribes to keep a brush ready for taking notes
hairpin-brush ornament
(literary) a ceremonial hair ornament featuring animal fur attached to a hairpin, worn in ancient times as part of official dress