1. Plural of flareback; sudden bursts of flame or fire that shoot backward, typically from an engine exhaust or combustion process.
Usage: technical; automotive/mechanical context
2. Plural of flareback; sudden reversals or negative reactions that occur unexpectedly after an initial event or action.
Usage: figurative; informal

Examples

• The mechanic inspected the engine for flarebacks that were causing the exhaust to ignite.
• Several flarebacks occurred during the rocket test, requiring immediate shutdown procedures.
• The policy change resulted in unexpected flarebacks from the community.
• Engineers worked to eliminate flarebacks in the combustion chamber design.
• The car's modified exhaust system produced dramatic flarebacks at night.
• Social media flarebacks followed the controversial announcement.