subs. (American thieves).A prepared pack of cards. Cf., CONCAVES AND CONVEXES and STOCK BROADS. More politely a good hand obtained on first dealing and without drawing fresh cards.
1880. S. L. CLEMENS (Mark Twain), Sketches, History Repeats Itself. I never have gambled from that day to thisnever oncewithout a COLD DECK in my pocket. I cannot even tell who is going to lose in games that are being played unless I deal myself.