The phrase "eager beavers" refers to people who are very enthusiastic, eager, and hardworking. They are usually motivated and always willing to do more than what is expected of them. Full definition
Here is a small group of eager beavers at McGill University in Montreal, Quebec, who have introduced composting to students living on and near campus. (treehugger.com)
Just as personalities differ, kids vary tremendously, and normally, in how they relate in school — from eager beavers to quiet mice. (babycenter.com)
So, it's no wonder why parents are flocking to this name like eager beavers, get it? (babygaga.com)