To be put to one’s trumps: to be in difficulties, or put to one’s shifts. Something may turn up trumps; something lucky may happen. All his cards are trumps: he is extremely fortunate.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
Trumpeter * TrundlersNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes