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plunk

1 ENTRIES FOUND:
plunk /ˈplʌŋk/ verb
plunks; plunked; plunking
plunk
/ˈplʌŋk/
verb
plunks; plunked; plunking
Britannica Dictionary definition of PLUNK
informal
chiefly US : to pull or hit a string or key on a musical instrument with your fingers especially in a way that makes a brief, somewhat harsh sound
[+ object]
[no object]
[+ object] US : to hit (someone or something) especially with a ball
always followed by an adverb or preposition, [+ object] chiefly US : to drop or place (something or someone) in a forceful and often careless way : plop
often used figuratively

plunk down

[phrasal verb] informal
plunk down (money) or plunk (money) down US : to pay or spend (money)
plunk down or plunk yourself down chiefly US : to sit or lie down suddenly in a careless way