naggie n.also naggy[nag n. (1) + dimin. -ie; note SE naggie, a pony, which can be ‘ridden’]the vagina.Show quotations1890–1904Farmer & Henley Sl. and Its Analogues. 1896Farmer Vocabula Amatoria (1966) 35: Berlingot, m. 1. The female pudendum; ‘the naggie’.