Green’s Dictionary of Slang

daggle-tail n.

a prostitute.

[1705–07		N. Ward Hudibras Redivivus I:4 25: But a new Flat-cap, scoundrel Fry, / With daggl’d Tails, came bawling by].
1727		Pope ‘Art of Sinking in Poetry’ Misc. II (1751) 127: You may call a young woman sometimes [...] Pigs-pigs-eyes, and sometimes Snotty-nose and Daggel-tail.
1764		Low-life 107: Mrs Mary Daggle-ass, and other ladies of her Profession, cursing and roaring at her Wenches [...] to drown the dismal Cries and Groans of departing Maidenheads.
1788, 1796		Grose Classical Dict. of the Vulgar Tongue (2nd, 3rd edn).
1811		Lex. Balatronicum.
1823		Egan Grose’s Classical Dict. of the Vulgar Tongue.