hair shirt
US /ˈher ˌʃɜrt/
UK /ˈher ˌʃɜrt/

1.
camisa de crina, cilício
a shirt made of coarse animal hair, worn next to the skin as a penance or mortification of the flesh
:
•
In medieval times, some ascetics wore a hair shirt to demonstrate their devotion.
Na Idade Média, alguns ascetas usavam uma camisa de crina para demonstrar sua devoção.
•
The monk's severe penance included wearing a rough hair shirt.
A severa penitência do monge incluía usar uma áspera camisa de crina.
2.
fardo, fonte de desconforto constante
something that causes constant discomfort or annoyance, especially as a self-imposed burden
:
•
His constant worrying about trivial matters was a real hair shirt for him.
Sua preocupação constante com assuntos triviais era uma verdadeira camisa de crina para ele.
•
Living with such strict self-imposed rules became a kind of hair shirt.
Viver com regras autoimpostas tão estritas tornou-se uma espécie de camisa de crina.