Definition from Wiktionary, the free dictionary
on pins and needles
- (idiomatic) Feeling sharp anticipation or anxiety; in a state of suspense.
1889, Mark Twain, chapter 6, in A Connecticut Yankee in King Arthur's Court:
- Merlin hesitated a moment or two, and I was on pins and needles during that little while.
1923, Hugh Lofting, chapter 1, in The Voyages of Doctor Dolittle, part 5:
- I was on pins and needles of expectation and curiosity.