Definition of stampede:
(n) :
a wild, headlong scamper, or running away, of a number of animals; usually caused by fright; hence, any sudden flight or dispersion, as of a crowd or an army in consequence of a panic
"she and her husband would join in the general stampede. -W. Black."
(v) :
to run away in a panic; said of cattle, horses, etc., also of armies; to disperse by causing sudden fright, as a herd or drove of animals