Crazy, insane.
A device used to store hats upon, consisting of a vertical pole with a sturdy base to prevent toppling, and an array of pegs to hold the hats.
Reckless, impetuous.
Rushing forward without restraint.
Precipitous.
Plunging downwards head foremost.
With an unrestrained forward motion.
Rashly; precipitately; without deliberation; in haste, hastily.
With the head first or down.
To precipitate.