What is the meaning of you could throw a blanket over them?

The phrase "you could throw a blanket over them" is an idiom that means the group of people is very small.

It implies that the group is so small that they could all fit under a single blanket, highlighting their limited size.

Here are some examples of how it might be used:

* "There were only a handful of people at the meeting - you could throw a blanket over them."

* "The team is so small, you could throw a blanket over them."

It's important to note that the phrase is generally used in a casual, informal way, and it can sometimes be used to express a sense of disappointment or lack of enthusiasm about the group's size.