The idiom "turn something on its head" means to completely change the way something is done or thought about. It is used when a situation or idea is completely reversed or flipped upside down.
For example, if a company has always followed a traditional hierarchical structure, but suddenly decides to adopt a flat organizational structure where everyone has equal power and responsibility, you could say that they have "turned the traditional organizational structure on its head."
Similarly, if a person has always been known for being shy and introverted, but suddenly becomes outgoing and confident, you could say that they have "turned their personality on its head."
In essence, this idiom is used to describe a complete reversal or transformation of something that was previously established or understood.
• When the new CEO took over, he turned the company's approach to marketing on its head.
• The recent political scandal has turned the public's perception of the politician on its head.
• The groundbreaking study completely turned the scientific community's understanding of the phenomenon on its head, paving the way for new discoveries.
• Turning something on its head means changing things completely.
• The discovery of a new treatment has turned the medical community's understanding of the disease on its head.
• The artist's latest work turns traditional concepts of beauty on their head, challenging viewers to rethink their preconceptions.