|pins and needles|
|1.||a tingling sensation in the fingers, toes, legs, etc, caused by the return of normal blood circulation after its temporary impairment|
|2.||on pins and needles in a state of anxious suspense or nervous anticipation|
In a state of anxiety or tense expectation: “Jackie was on pins and needles waiting to hear about her job application.”
on pins and needles
Nervously anxious, as in He was on pins and needles, waiting for the test results. The graphic expression pins and needles for the tingling sensation experienced in recovering from numbness was transferred to a feeling of marked mental uneasiness about 1800.