{not} [hurt|harm] a (fly|flea)
1
to refrain from doing anything that would harm or threaten the life of any person or animal
The origin of the expression "not hurt a fly" is uncertain, but it is commonly used to describe someone who is extremely gentle and wouldn't harm even the smallest creatures. It highlights their peaceful nature and their reluctance to violence or aggression, both in personal relationships and societal discussions.
- Despite his intimidating appearance, he's actually really kind-hearted and wouldn't harm a flea.
- He may have a tough exterior, but deep down, he has a gentle heart and wouldn't hurt a flea.
- She is the sweetest person I know.She wouldn't hurt a fly, even if it landed on her.
- The children were playing peacefully in the garden.They were so innocent and wouldn't harm a fly.