"There, as my lord, with achromatic glass, / "O'erlooks St. James's Park, and on the grass, / "Beneath his mansion's half-closed window spies / "Two crouching urchins' gross obscenities, / "He turns his eager gaze, adjusts the screw, / "And brings their unwashed nudities in view. / "That spot, concealed by two o'er hanging hills, / "Foul sweat and fœtid excrement distils, / "Yet frowsy, there the pipe-clayed soldier sports, / "And bishops hold episcopalian courts. / "'Tis there the Bath empiric's finger guides, / "The oiled bougie ; and as the dildo slides / "Besmeared, to meet last night's descending meal, / "Oft makes the strictures he pretends to heal.
Source: wiktionary