220 56 Glad, from his side I sprang, and fetch'd the draught, Which down his greedy throat he quickly swills, Then on a second errand sent me strait, To search in some dark corner for his pills.
"The Poems of Philip Freneau, Volume I (of III)"
Philip Freneau
In other cases, hogs which are fed swills from restaurants, hotels, etc.
"The Veterinarian"
Chas. J. Korinek