Green’s Dictionary of Slang

bugher n.

also buhar
[echoic of its bark]

(UK Und.) a (little, yelping) dog.

[UK]Dekker Canting Song O per se O O3: To thy Buhar [...] I bid adieu.
[UK]Dekker Eng. Villainies (9th edn).
[UK]Head Eng. Rogue I 47: Bughar, A Cur.
[UK] ‘A Wenches complaint for . . . her lusty Rogue’ Head Canting Academy (1674) 17: To thy Bughar and thy skew, / Filch and Jybes I bid adieu.
[UK]R. Holme Academy of Armory Ch. iii item 68c: Canting Terms used by Beggars, Vagabonds, Cheaters, Cripples and Bedlams. [...] Bugher, a Cur Dog.
[UK]B.E. Dict. Canting Crew.
[UK]J. Shirley Triumph of Wit 200: To thy Bugher and thy Skew, / Filch and Gybes, I bid adieu [To thy Dog an Dish adieu, Thy Staff and pass I ne’er must view].
[UK]New Canting Dict.
[UK]Bailey Universal Etym. Eng. Dict.
[UK]Scoundrel’s Dict. 16: A Dog – Bugher.
[UK]Grose Classical Dict. of the Vulgar Tongue.