Green’s Dictionary of Slang

to break wind silently.

1604		Dekker Honest Whore Pt 1 I viii: Fluello, spurne your hounds when they foiste, you shal not spurne my Puncke.
1605		Chapman & Jonson Eastward Ho! II iii: I must feign myself extremely amorous [...] part with her as passionately as she would from her foisting hound.
1656		Mennis & Smith ‘The Fart Censored in Parliament’ Musarum Deliciae (1817) 82: Harry Ludlows foisting arse cry’d no [...] ’tis an audacious trick, / To fart in the face of the body politick.
1664		C. Cotton Virgil Travestie (1765) Bk I 18: Go tell that farting Fool your Master / [...] / Make no more such Foisting here.
1672		M. Atkins Cataplus 10: The Sibyl would belch, fart, and stink, / Assoon’s [sic] the scoundrels came she hoisted / Her bum, and in their faces foisted.
1705		J. Michelburne Ireland Preserved in Bliss Irish Writings from the Age of Swift (1977) 144: He did bate my Wife, and did trow her down stairs, and did call her a Feisting, Farting, Stinking Shaad .
1822		R. Nares Gloss. (1888) I 341: fyst. A corruption of foist, which was a jocular term for a windy discharge of the most offensive kind.