subs. pl. (old).The arm-pits.
c. 1709. WARD, Terræ Filius, v. 27. By nature she is almost as rank as a Red Herring, yet
she so Rectifies the Effluvia that arises from her SWEAT-PITS, that she smells as fragrant as a Perfumers-Shop next Door to a Tallow-Chandlers.