"She has eyes on the back of her head" is an idiom. It is used metaphorically to describe someone who is very aware of their surroundings or seems to have extra sensory perception.
Nothing. Perhaps you're thinking of "eyes in the back of one's head," which means that the person is so alert and observant that it seems as though they have an extra set of eyes.
It has nothing to do with "supernatural powers of sight or insight".It simply means someone who has heightened awareness - you can see or sense things that most people would not notice. It often means something impossible to see or know about as expressed by " I would need to have eyes in the back of head " (to know about that.)When you can see things without really looking directly at them.This idiom is often about parents, especially moms, or about something important to an adult.For example: The child tried to sneak out of the house while the mother was cooking but she has eyes on the back of her head and anticipated that her child might try to leave.NOTE: This idiom can be said as "do" or "don't" / doesn't, or "would have to...".Dad has eyes in the back of his head when it comes to kids around his motorcycle. He yells at the kids before they even think to go near it.Grandma doesn't need to have eyes in the back of her head since her own children became middle aged adults.I would have to have eyes in the back of my head to keep up with the bad things my teenagers try to do.
This isn't an idiom because you can figure out what it means by defining the words. It's an exaggeration - the guy's eyes didn't literally pop out of his head, but he was opening them really wide with surprise so they looked like they were popping out.
It's just a vivid description for eyes rolling upwards until the white part shows.
Does a fly have eyes in the back of its head
Your eyes can roll to the back of your head when you have a seizure - it is not the epilepsy medications that do this.
Bob came up with it after a dream in wich he said hi to people with eyes in the back of their head.
To turn completely around and head back in the direction you came from.
Keep an idea in ones head to act on it later.
No.
No.