Green’s Dictionary of Slang

foutre, a n.

a synon. for fuck n. (2a)

c.1597		Shakespeare Henry IV Pt 2 V iii: A foutra for the world and worldlings base!
1607		Marston What you will II i: A foutra for thy hand, thy heart, thy braine.
1613		Middleton Chaste Maid in Cheapside II ii: My wife lies in; a foutra for promoters!
1632		R. Brome The northern lasse n.p.: Fit. Can you call me sister, and see me abus’d thus? Wid. Foutre for sisters; I am not to medle with an other mans Wife.
1659		Greene & Lodge Lady Alimony III vi: A foutre for such ranging Mawkins.