Feague (Grose 1811 Dictionary)
To feague a horse; to put ginger up a horse’s
fundament, and formerly, as it is said, a live eel, to make
him lively and carry his tail well; it is said, a forfeit is
incurred by any horse-dealer’s servant, who shall shew a
horse without first feaguing him. Feague is used,
figuratively, for encouraging or spiriting one up.
Definition taken from
The 1811 Dictionary of the Vulgar Tongue,
originally by Francis Grose.
Fawney * Feak
1736 Dictionary of canting and thieving slang
John S. Farmer's collection
canting songs and slang rhymes