a group of (usu. used with Milfs, Milves or Milfen) - see MILF.
Similarly to a pride of lions, a school of fish or a bevy of beauties we have the phrase "A dairy of milfen/milfs/milves" . The use of the -en plural lends it a pseudo-dated feeling and credibility. Those with a more contemporary taste,however, can use milfs or milves.

The act of using an animal for milk, cheese, cream, and other products.

When you call some "dairy"

It means a very weak ,push over, immature

Personally.

The term Dairy was originated after the dairy tooth we have as baby's.