A swarm of ants
As a Chinese idiom, the Pinyin is f ē ngcu á NY ǐ J í, which means to describe the disorderly gathering of people like bees and ants. It's from xingshihengyan.
The origin of Idioms
Feng Menglong of Ming Dynasty, Volume 18 of Xingshi Hengyan: "the merchants from all over the world come to buy them, and they can't get away from them."
Idiom usage
A group of people gather together.
A swarm of ants
one 's criminal conspiracy was unmasked - dōng chuāng shì fàn