kaboom

noun ka·boom \ kə-ˈbüm \

Definition of kaboom

plural kabooms
informal
: the sound of an explosion or crash
  • heard a loud kaboom
often used interjectionally
  • Have you ever watched metallic sodium hit water? Kaboom. Krakatau revisited …
  • —Don Asher
  • But it seems to me that the minute you build an emergency fund—kaboom! Along comes an "emergency."
  • —Jane Bryant Quinn
go kaboom
informal
1 : to explode or crash violently
  • … when the house exploded the night before, cops believed that it had been a drug factory that went kaboom
  • —Larry Celona and Ruth Brown
2 : to undergo a sudden, explosive change, failure, etc.
  • … a few crucial injuries can make the whole equation go kaboom.
  • —Paul Zimmerman

Origin and Etymology of kaboom

ka-, unstressed syllable prefixed to onomatopoeic words + 2boom


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