Bang up. Quite the thing. Excellent. Well done. She’s a prime piece; she is very skilful in the venereal act. Prime post. She’s a prime article.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
Prigstar * PriminakyNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes