EYES IN THE BACK OF ONE'S HEAD

{n. phr.}, {informal} Ability to know what happens when your back is turned. * /Mother must have eyes in the back of her head, because she always knows when I do something wrong./

{n. phr.}, {informal} Ability to know what happens when your back is turned. * /Mother must have eyes in the back of her head, because she always knows when I do something wrong./