Green’s Dictionary of Slang

a general oath of dismissal; a synon. with fuck! excl.

1599–1603		Trial of Chivalry in Bullen Collection III II i: Futra! tis well known since Dick Bowyer came to France he bath shewed himselfe a gentleman.
1605		Marston Dutch Curtezan II ii: Foutra pon you Vitch, Bawde, Polecatte.
1611		L. Barry Ram-Alley III i: thr.: Ile passe my words. bea.: Foutre words are wind.
1635		H. Glapthorne Hollander IV i: We will disagree about manners, Ile be as clownish as an Upland Bore, foutra, tell a Dutchman of manners?
1835		A.B. Longstreet Georgia Scenes (1848) 42: Foutre, de sist’ Dils! Here’s Monsieur Middletong!