Nothing. I'm afraid you've gotten the idiom incorrectly. It should be "the apple of her father's eye" and it means she is his special favorite. The apple of the eye is another term for the pupil or center of the eye.
Yes
jump a lots
The earliest recorded use in Modern English is in Sir Walter Scott's Old Mortality, 1816: "Poor Richard was to me as an eldest son, the apple of my eye."
The idiom "apple shiner" means the teacher's pet.
An apple of discord is a specific issue that causes disagreement between people.
An idiom is a phrase or expression where the literal meaning is different from the intended meaning. It may not make sense if interpreted word by word. Examples include "raining cats and dogs" and "barking up the wrong tree."
The apple of your eye means a particular preference, or a loved one; the object of somebody's affections. So it means something very dear to you.The idiom "apple of your eye" comes from the Old Testament of the Bible. It is in 4 verses, Deuteronomy 32:10, Psalm 17:8, Proverbs 7:2, and Zechariah 2:8."We all know that she is the apple of your eye."This would mean that the female in this expression is the person you desire. The pupil is also known as the apple of the eye -- it is the source of focus; thus when someone is the apple of the eye, they are the focus, the center.
The apple of your eye means a particular preference, or a loved one; the object of somebody's affections. So it means something very dear to you.The idiom "apple of your eye" comes from the Old Testament of The Bible. It is in 4 verses, Deuteronomy 32:10, Psalm 17:8, Proverbs 7:2, and Zechariah 2:8."We all know that she is the apple of your eye."This would mean that the female in this expression is the person you desire. The pupil is also known as the apple of the eye -- it is the source of focus; thus when someone is the apple of the eye, they are the focus, the center.
To seek a favor from someone through flattery
This is not used as much as it once was, but people will know what you mean if you use it; it's not obsolete.
The image is of you pointing an eye at something or someone. It means to watch carefully.