Third-person singular simple present indicative form of plunk.(verb)
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Use "plunks" in a sentence
"One day a company came along, attracted by the noise that had been made, and bonded the claims for a few hundred "plunks" down and the balance of one hundred thousand dollars in three months if they decided to take the claims over."
"They had one mind, one ambition, and they had agreed, mutually, to salt down a few "plunks" each payday for their anticipated gray days."
"Spike, a diamond necklace of cunning workmanship was merely the equivalent of so many "plunks"; but he knew that there were men, otherwise sane, who valued a jewel for its own sake."