Definition of "kerplunk" []

• To fall with a sound like that of a heavy object falling rapidly into water. (verb-intransitive)
• A kerplunking sound or movement. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Instead, we get the "kerplunk" scene we knew we were getting from the end of last issue, Luthor revealing that he's actually kind of a bastard after all, members of Infinity II declaring twice in two pages that it sure is a good thing they still have their powers, and a lost-in-space scene that once again fails to advance that plot."
• "She looks back at me after it makes a satisfying kerplunk."
• "A Saw type figure, played by Tyler Perry as Madea in a horrific Richard Nixon mask, taunts the survivors with his eerie song "kerplunk kerplunk, marbles on your head, I pull out another stick, and you'll be dead.""