go to pieces

US /ɡoʊ tə ˈpiːsɪz/
UK /ɡoʊ tə ˈpiːsɪz/
"go to pieces" picture
1.

取り乱す, 崩壊する

to become so upset or nervous that you cannot function normally

:
After the accident, she completely went to pieces.
事故の後、彼女は完全に取り乱した
He tends to go to pieces under pressure.
彼はプレッシャーに弱く、取り乱しがちだ