pins and needlesBrE/ˌpɪnz ən ˈniːdlz/NAmE/ˌpɪnz ən ˈniːdlz/noun[U]anuncomfortablefeelinginapartofyourbody, causedwhenanormalflowofbloodreturnsafterithasbeenpartlyblocked, especiallybecauseyouhavebeensittingorlyinginanawkwardposition发麻;麻木◆tohavepinsandneedles感觉麻木●beonˌpinsandˈneedles(NAmE) = (be) on tenterhooks