She's a savour to the glass,
An excuse to make it pass.
Source, in full
Ascribed to Suckling, The Goblins, act III, in Hoyt's New Cyclopedia of Practical Quotations (1922), p. 803. The same lines are to be found in an early dramatic sketch by Sheridan: printed in Thomas Moore (ed.) Memoirs of the Life of the Rt Hon. Richard Brinsley Sheridan, 3rd ed. (1825), vol. 1, p. 315