Definition of "plunk" [plunk]

• To throw or place heavily or abruptly: plunked the money down on the counter. (verb-transitive)
• To strum or pluck (a stringed instrument). (verb-transitive)
• To drop or fall abruptly or heavily; plump: plunked onto the couch with a sigh of relief. (verb-intransitive)
• To emit a hollow twanging sound. (verb-intransitive)
• Informal A heavy blow or stroke. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "And cash it was made, thirty plunks (a plunk is a dollar, my dear Anak), and"
• "And cash it was made, thirty PLUNKS (a plunk is a dollar, my dear Anak), and"
• "And cash it was made, thirty PLUNKS (a plunk is a dollar, my dear Anak), and I pulled my freight."