v. phr. To become very nervous or sick from nervousness; become wild. Mrs. Vance went to pieces when she heard her daughter was in the hospital. The man went to pieces when the judge said he would have to go to prison for life. Mary goes to pieces when she can't have her own way.
GO TO PIECES
Meaning of GO TO PIECES in English
American idioms English vocabulary. Английский словарь американских идиом. 2012