noun, noun or participle which takes 'suru', intransitive verb
Used when people, orders, applications, questions, complaints, or similar things come in all at once in overwhelming numbers. As a する verb it is intransitive: Xが殺到する or Xに殺到する.
新商品の発売後、注文が殺到した。
After the new product went on sale, orders flooded in.
発表の直後、会社に問い合わせが殺到した。
Immediately after the announcement, the company was flooded with inquiries.
駅の出口にファンが殺到した。
Fans rushed to the station exit.