Rushing forward without restraint.
Precipitous.
Reckless, impetuous.
Plunging downwards head foremost.
To precipitate.
With an unrestrained forward motion.
Rashly; precipitately; without deliberation; in haste, hastily.
With the head first or down.
Moving with haste or zeal.
To run (a distance).
Hastily; without delay.
The prank of secretly inserting a match between the sole and upper of a victim's shoe and then lighting it.