Definitions:
a disorderly retreat of defeated troops

an assembly of people who have made a move towards committing an illegal act which would constitute an offence of riot.

a large evening party or reception.

a pack of wolves

defeat and cause to retreat in disorder

cut a groove, or any pattern not extending to the edges, in (a wooden or metal surface)

(of an animal) turn up ground with its snout in search of food.

find or retrieve