Origin of plunk
First recorded in 1760–70; expressive word akin to
pluck
Words nearby plunk
British Dictionary definitions for plunk down
Word Origin for plunk
C20: imitative
Idioms and Phrases with plunk down
plunk down
Throw or place or drop heavily, as in He plunked down the money and walked out, or It was hot work, so after an hour we plunked ourselves down in the shade. [Late 1800s]