1. (informal) to act or begin too soon or without due caution 
2. To begin a race too soon, before the starting gun goes off

Derived forms: jumped the gun

• flush down
• flush it
• flush toilet
• flush-seamed
• flushed
• flushless toilet
• fluster
• flustered
• flute
• flute glass
• flute player
• fluting
• flutist
• flutter
• flutter kick
• fluttering
• fluttery
• fluty
• fluvastatin
• fluvial
• paviour
• pavis
• pavise
• Pavlov
• pavlova