Kerplunk may refer to:
Kerplunk (album), an album by Green Day KerPlunk, a game of skill involving marbles and rods in a cylinder KerPlunk, a nickname given to the sculpture B of the Bang Kerplunk experiment, an experiment of psychology conducted by John Watson A tune by jazz trumpeter Donald Byrd on the 1956 Jackie McClean album Lights Out!
See also Onomatopoeia, a word or phrase that both names and imitates a sound