Comprehensive resource for understanding and mastering English idioms
The idiom "axe to grind" means that someone has a personal vendetta or grudge against someone or something. It implies that the person is motivated by a strong feeling of hostility or resentment and is seeking revenge or justice.
The idiom "axe to grind" originated from medieval times when people would use axes to grind down bones and teeth for medicinal purposes. This practice was often associated with witchcraft and sorcery, as it was believed that the grinding of human bones could bring good luck or ward off evil spirits. Over time, the phrase became used metaphorically to describe someone who had a personal vendetta or grudge against someone or something. The idiom gained popularity during the medieval period when people believed in the power of witchcraft and sorcery, but it has since become a common expression in contemporary language.