Green’s Dictionary of Slang

vine-bud-nipper n.

(UK Und.) an older woman who entices young virgins into prostitution.

[UK]Duncombe New and Improved Flash Dict. n.p.: Vine-bud nippers infamous she-monsters who waylay and entice young innocent girls to sacrifice their, till then, chaste persons, to the brutal appetite of some lascivious old debauchee.