From Hide and Seek by Wilkie Collins (1854):

Zack took Mrs. Blyth’s advice, and sat down by her, with his back towards the cribbage players.

“Well, the question is, What present am I to give her?” he went on. “I’ve been twisting and turning it over in my mind, and the long and the short of it is—”

(“Fifteen two, fifteen four, and a pair’s six,” said Valentine, reckoning up the tricks he had in his hand at that moment.”

“Did you ever notice that she has a particularly pretty hand and arm?” proceeded Zack, somewhat evasively. “I’m rather a judge of these things myself; and of all the other girls I ever saw—”

“Never mind about other girls,” said Mrs. Blyth. “Tell me what you mean to give Madonna.”

(“Two for his heels,” cried Mrs. Peckover, turning up a knave with great glee.)

Aha! The reader deduces that people used to say “two for his heels” when they turned a Jack to start. Peculiar.