be hand and foot to (one)

be hand and foot to (one)

To be essential or vitally important to one. My assistant is hand and foot to me—I could never keep my schedule straight without her.
See also: and, foot, hand
Farlex Dictionary of Idioms.
See also:
  • foot
  • on foot
  • foot up
  • fleet of foot
  • my foot
  • My foot!
  • foot it
  • shoot oneself in the foot, to
  • be caught on the wrong foot
  • set foot in (some place)