You admire the pleasant plunking sound suggestive of ripe watermelons when you pat yourself.
"Cobb's Anatomy"
Irvin S. Cobb
If one does not one's self rejoice in its plunking, there are others who do, and that is enough for my altruistic spirit.
"Imaginary Interviews"
W. D. Howells
No more grenades were plunking on the roof.
"The Lost Warship"
Robert Moore Williams