The idiom that contains the words "frustration" is "frustration boils over." This phrase is used to describe a situation where someone's frustration reaches a point of no return, often resulting in an outburst or a strong emotional reaction. The idiom metaphorically suggests that the frustration has built up to a level where it can no longer be contained.

The use of this idiom is prevalent in everyday language and is particularly relevant in contexts where individuals are dealing with challenging or stressful situations. For instance, in a work environment, if a manager is facing numerous setbacks and challenges, their frustration may eventually "boil over," leading to a tense or confrontational situation.

Data from various studies on workplace stress and emotional management support the relevance of this idiom. According to a survey by the American Psychological Association, 41% of workers reported feeling burned out due to high levels of stress in their jobs. This high level of stress can lead to frustration boiling over, as employees may feel overwhelmed and unable to cope with their workloads.

Moreover, research published in the Journal of Occupational and Organizational Psychology found that when employees experience high levels of frustration at work, it can negatively impact their job performance and overall well-being. The study highlighted the importance of managing frustration effectively to maintain a healthy work-life balance and prevent negative outcomes.

In conclusion, the idiom "frustration boils over" is a powerful expression that captures the intense emotional state of frustration reaching a breaking point. Its relevance is underscored by data on workplace stress and the negative consequences of unmanaged frustration.