1. used to represent the sound of something heavy falling or dropping into water
Usage: onomatopoeia

1. with a heavy falling or splashing sound
Usage: informal

Examples

• The rock went kerplunk into the pond.
• Kerplunk! The frog jumped off the lily pad.
• The heavy book fell kerplunk onto the floor.
• She dropped the stone and it landed kerplunk in the water.
• The ball bounced once and then went kerplunk into the fountain.
• Kerplunk went the anchor as it hit the lake bottom.