
Jump out of your skin
Intensity
The phrase often implies an extreme reaction, more than just being surprised.

I jumped out of my skin when the alarm went off unexpectedly.
Colloquial Use
It's informal and best used in casual conversation or creative writing.

She almost jumped out of her skin when her friend popped out of the box.
Figurative
The phrase is not literal; nobody actually jumps out of their skin.

You made me jump out of my skin creeping up like that!
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