1. making a sound like something dropping into water; falling or dropping with a dull sound
Usage: present participle of ‘plop’

1. the action or sound of something dropping with a dull thud
Usage: gerund form

Examples

• The frog was plopping into the pond repeatedly.
• She heard the plopping of raindrops on the roof.
• The stone went plopping into the lake.
• The plopping sound echoed across the water.
• He was plopping ice cubes into his drink.
• The plopping of the fish jumping was rhythmic.