stampede

Short definition from Wiktionary

Noun

1. 1
   A wild, headlong running away or scamper of a number of animals, usually caused by fright.
2. 2
   A situation in which many people in a crowd are trying to move in the same direction at the same time, especially in consequence of a panic.
3. 3
   An event at which cowboy skills are displayed; a rodeo.
4. 4
   A sudden unconcerted acting together of a number of persons due to, or as if due to, some common impulse.

Verb

1. 1
   To cause (a drove or herd of animals) to run away or scamper in a wild, headlong manner, usually due to fright.
2. 2
   To cause animals (owned by a person) to run away or scamper in this manner.
3. 3
   To cause (people in a crowd) to move in the same direction at the same time, especially due to panic.
4. 4
   To cause (an individual) to act hastily or rashly.
5. 5
   To cause (people) to act in a sudden unconcerted manner due to, or as if due to, some common impulse.
6. 6
   Of a drove or herd of animals: to run away or scamper in a wild, headlong manner, usually due to fright.
7. 7
   Of people in a crowd: to move in the same direction at the same time, especially due to panic.
8. 8
   Of people: to act in a sudden unconcerted manner due to, or as if due to, some common impulse.