What does the idiom i lost my head mean?

The idiom "I lost my head" means to act impulsively or irrationally, often as a result of strong emotion. It implies a temporary loss of control over one's thoughts and actions.

Here's how it can be used in a sentence:

* "I lost my head and agreed to buy the car even though I couldn't afford it."

* "When I saw my favorite band perform, I lost my head and started singing along loudly."

The idiom suggests that the person's reason and judgment have been temporarily overridden by emotions like excitement, anger, fear, or love.