[fall] to pieces

to completely fail to be effective

The origin of the idiom "fall to pieces" is not entirely clear, but it may be related to the idea of something that is poorly constructed or maintained, causing it to break apart or fall apart over time. Over time, the phrase has come to be used more generally to describe any situation where something fails to function effectively or falls apart completely, whether it be a physical object, a relationship, or a plan. The phrase can also be used to describe a person who is struggling emotionally and is unable to cope with a difficult situation.

The actor forgot his lines during the performance, causing the scene to fall to pieces and the audience to become confused.
The company's financial situation was already precarious, and then the loss of a major client caused everything to fall to pieces.
The old car was already starting to fall to pieces, and then it finally broke down on the side of the road.
The team had been struggling all season, and when their star player was injured, their performance fell to pieces.

to experience a strong emotional or mental struggle, where someone feels overwhelmed, upset, and unable to handle their emotions

The idiom "fall to pieces" likely originates from the visual image of something physically breaking apart or disintegrating into smaller, unmanageable parts. In a figurative sense, it is used to describe a situation where an individual experiences a profound emotional or mental struggle, feeling overwhelmed, upset, and unable to handle their emotions.

After the tragic loss, she fell to pieces and couldn't stop crying.
The breakup with his long-term partner caused him to fall to pieces and isolate himself from others.
The news of the accident made him fall to pieces, and he couldn't concentrate on anything.
The stress of the job caused him to fall to pieces and have panic attacks.

to age gradually, leading to a state of poor or declining condition

The idiom "fall to pieces" originated from the concept of physical objects deteriorating or disintegrating over time. The phrase is used to describe the process of something becoming old and in bad condition, often due to neglect, wear, or lack of maintenance. In other words it is used to convey the idea of gradual deterioration and suggests that the subject has reached a point where it is no longer functional or presentable.

The abandoned house had fallen to pieces, with crumbling walls and a sagging roof.
After years of neglect, the once-thriving garden had fallen to pieces, overrun by weeds and dead plants.
The old book, left exposed to moisture and pests, had fallen to pieces, its pages yellowed and torn.
The neglected car had fallen to pieces, with rust eating away at its body and engine failure.
The antique furniture, without proper care, had fallen to pieces, with loose joints and chipped surfaces.