Green’s Dictionary of Slang

an act of sexual intercourse.

1661		‘Maiden’s Delight’ in Farmer Merry Songs and Ballads (1897) I 137: Quoth she, my friend, let kissing end, Where with you do me smother, And run at Ring with t’other thing; A little o’ th’ one with t’other.
1896		Farmer Vocabula Amatoria (1966) 25: Avoir une bonne fortune = 1. to copulate; ‘to have a little of one with t’other’.