Green’s Dictionary of Slang

piggin n.

[dial. piggin, a small (drinking) vessel, a pitcher; either wood or earthenware and with a handle attached. OED lists both origin and ety as ‘uncertain' ]

the vagina.

Show quotations
[UK]M. Stevenson Wits Paraphras’d 122: So may the little Country Cracks, / Fall all before thee on their Backs, / And all the Milk-maids Piggins burst / In heat of Love to quench thy Thirst.