Select the most appropriate meaning of the given Idiom:-

 "To turn turtle"

To turn upside down

The most appropriate meaning of the idiom "to turn turtle" is to turn upside down.

The idiom comes from the idea of a turtle turning over on its back, which is a very vulnerable position. It is often used to describe something that has been turned upside down or that is in a state of chaos.

The other options are incorrect.

• To be moved or upset does not fit the meaning of the idiom. To turn turtle is a physical act, while being moved or upset is a mental or emotional state.
• Turn hostile does not fit the meaning of the idiom. To turn turtle is not a hostile act, while turning hostile is an aggressive act.
• Getting confused does not fit the meaning of the idiom. To turn turtle is not a state of confusion, while getting confused is a mental state.