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.
Use "whump" in a sentence
"I waited for the "whump" of the explosion, the popped out left and fired off two quick rounds, only to realize that my attackers were all children, maybe 10 or 12 years old."
"When they set off the blast, you could barely hear the muffled "whump" below your feet (yeah, we stood right there, not four or five meters from the hole)."
"There was an instant when he wasn't certain it would work-but then the gasoline he'd poured around the inside of the barn caught, and with a satisfying "whump," the inside of the building blossomed into flame."