need something like you need a hole in the head

US /niːd ˈsʌmθɪŋ laɪk ju niːd ə hoʊl ɪn ðə hɛd/
UK /niːd ˈsʌmθɪŋ laɪk ju niːd ə hoʊl ɪn ðə hɛd/
"need something like you need a hole in the head" picture
1.

全く必要ない, 問題を引き起こすので欲しくない

to not need something at all, or to not want something because it would cause problems

:
I need another car like I need a hole in the head; my current one works perfectly fine.
私は頭に穴が開くのと同じくらい別の車が必要だ。今の車は完璧に動いている。
She told him she needed his advice like she needed a hole in the head.
彼女は彼に、頭に穴が開くのと同じくらい彼のアドバイスが必要だと言った。