[turn] {one's} head
1
to have an influence on how someone behaves, particularly by making them seem too important or proud
The idiom "turn one's head" originated from the literal action of physically turning one's head to look in a different direction. Over time, it developed a figurative meaning in English language usage. It is often used to convey the idea of being fascinated or mesmerized by someone or something, sometimes to the point of losing rational judgment or awareness of one's surroundings.
- The praise and recognition turned his head, leading him to adopt an attitude of superiority and self-importance.
- The sudden fame has turned her head, making her behave arrogantly and disregard others' opinions.