Kerplunk

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!