A long-winded parson; one who preached long, tedious sermons. A long-winded paymaster; one who takes long credit.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
Long Tongued * LooNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes