
Prick your conscience
Metaphorical Sting
The phrase suggests a sharp mental discomfort as if conscience has been physically stung.

Cheating in the exam pricked his conscience for weeks.
Emotional Trigger
It is used when an action or event triggers a feeling of guilt or remorse.

Lying to her parents really pricked her conscience.
Reflective Moments
Often used to describe a moment of reflection that causes a change of heart or behavior.

Ignoring the charity appeal pricked his conscience later on.
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