stampede in (something)
1. To rush in(to some place) all at once and in, or as if in, a wild panic. A great mass of people stampeded in the department store at the crack of dawn to avail of their Black Friday sales. I opened the gates to the barn and all the cows stampeded in.
2. To stampede due to some particular catalyst or reason. The herd began stampeding in fear after the loud explosion went off. The crowd of protesters stampeded in panic after the police began firing tear gas at them.
stampede in(to some place)
[for a crowd of people or other creatures] to move rapidly into a place, as if in panic. The shoppers stampeded into the store the minute the doors opened. The doors opened and the shoppers stampeded in.