pins and nee·dles/ˌ· · ˈ··/ n 1 [U] the uncomfortable feeling that you get when your blood returns to a part of your body, for example after sitting in an uncomfortable position 〔四肢麻木后恢复过来时的〕针刺感，发麻 2AmE be on pins and needles to be very nervous 【美】 如坐针毡，坐立不安: Mom's been on pins and needles waiting to hear from you. 妈妈一直坐立不安在等你的消息。