Definition of "gigget"

Guard, Treaſon, treaſon, treaſon. / Boatſ[wain]. Cut the ſlaevs to giggets.

c. 1619–1622, John Fletcher, Philip Massinger, “The Double Marriage. A Tragedy.”, in Fifty Comedies and Tragedies. […], [part 2], London: […] J[ohn] Macock [and H. Hills], for John Martyn, Henry Herringman, and Richard Marriot, published 1679, Act III, scene i, page 104, column 2

Next them all ſorts of Roſt-meates, of which the greateſt first, as Chine of Beeffe or Surloine, the Gigget or Legges of Mutton, Gooſſe, Swan, Veale, Pig, Capon, and ſuch like.

1623, G[ervase] M[arkham], “Of the Outward and Actiue Knowledge of the Hous-wife; and of Her Skill in Cookerie; as Sallets of All Sorts, with Flesh, Fish, Sauces, Pastrie, Banqueting-stuffe, and Ordering of Great Feasts: Also Distillations, Perfumes, Conceited Secrets, and Preseruing Wine of All Sorts”, in Covntrey Contentments, or The English Husvvife. […], London: Printed by I. B. for R. Iackson, […], page 120