thorn in your side
US /θɔrn ɪn jʊər saɪd/
UK /θɔrn ɪn jʊər saɪd/
1.
目の上のこぶ, 悩みの種
a person or thing that repeatedly causes trouble or annoyance
:
•
His younger brother has always been a thorn in his side, constantly getting into mischief.
彼の弟はいつも目の上のこぶで、絶えずいたずらをしていた。
•
The new policy has become a real thorn in the side of many employees.
新しい方針は多くの従業員にとって本当の悩みの種となっている。