cry (one's) heart out

cry (one's) heart out

To cry for an extended period of time. Poor Jane really cried her heart out during the funeral service. I can't watch those sappy movies because I just cry my heart out every time.

See also: cry, heart, out

cry one's heart out

 and sing one's heart out; play one's heart out; sob one's heart out

Fig. to do something with vigor or intensity. She suffered such grief—alone and sobbing her heart out. The bird sang its little heart out each morning.

See also: cry, heart, out

cry your heart out

or

sob your heart out

INFORMAL

COMMON If you cry your heart out or sob your heart out, you cry a lot. Note: The heart is traditionally regarded as the centre of the emotions. I threw myself on to the bed and cried my heart out. I had never known her cry, and here she was sobbing her heart out. Compare with your heart out.

See also: cry, heart, out