Meaning of pins and needles

pins' and nee'dles

Pronunciation: [key]
  1. a tingly, prickly sensation in a limb that is recovering from numbness.
  2. in a state of nervous anticipation: The father-to-be was on pins and needles.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.