Begetting children. To face it out; to persist in a falsity. No face but his own: a saying of one who has no money in his pocket or no court cards in his hand.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
FacerNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes