一窩蜂

The number one; single; a; as soon as; entire; whole; all; a "one" radical in Chinese characters; also used for clarity when spelling out numbers.

A nest or lair for animals; a place where people gather or live; a hollow or indentation; to hide or shelter; to curl up or stay put.

A bee or wasp; a stinging insect that often lives in colonies; can refer to hornet.