Clean Slate Effect

Dirty Hands and Dirty Mouths - Embodiment of the Moral-Purity Metaphor Is Specific to the Motor Modality Involved iMoral Transgression
Maggots and Morals - Physical Disgust is to Fear as Moral Disgust is to Anger
Washing away post-decisional dissonance
Washing away your (good or bad) luck - physical cleansing affects risk-taking behavior
Washing Away Your Sins - Threatened Morality and Physical Cleansing
Wiping the slate clean - Psychological consequences of physical cleansing
With a clean conscience - Cleanliness reduces the severity of moral judgments