1805, "to pluck a stringed instrument;" 1808 in sense of "drop down abruptly;" 1888 as "to hit, wound, shoot." Probably of independent imitative origin in each case. Related: Plunked; plunking.
Others are reading
Share plunk
Advertisement
Definitions of plunk from WordNet
1
plunk (v.)
make or move along with a sound as of a horse's hooves striking the ground;