Event in a Car's Exhaust That Sounds Explosive
This page is the CodyCross answer for the clue below from Fauna and Flora, Group 180, Puzzle 4 (Survival of the Fittest).
Question is: Event in a Car's Exhaust That Sounds Explosive
and the answer is: BACKFIRE
Word Meaning:
BACKFIRE — A premature explosion in the cylinder of a gas or oil engine during the exhaust or the compression stroke, tending to drive the piston in the wrong direction.
Definitions from Wiktionary.