on pins and needles

US /ɑn pɪnz ænd ˈniːdlz/
UK /ɑn pɪnz ænd ˈniːdlz/
"on pins and needles" picture
1.

in a state of anxious expectation; nervously awaiting something

:
•
I've been on pins and needles all day waiting for the test results.
•
Everyone was on pins and needles as they watched the final penalty kick.
:
pins and needlesneedlepinknitting needlea needle in a haystackrolling pinbobby pin