Wiktionary
n. 1 (context idiomatic colloquial English) One (especially a child) who is very excited or enthusiastic to begin a task. 2 (context idiomatic humorous English) A woman with a high sex drive
WordNet
Wikipedia
Eager Beaver may refer to:
Usage examples of "eager beaver".
Part of the agreement is for me to steer clear of the Eager Beaver.
Eve ordered with enough force to have one eager beaver stumbling backward and stomping on the foot of a cohort.
After a while I fell asleep over the paper and slept until Eager Beaver or his twin fetched lunch.
But I was anxious to get started on it, as I could see from Eager Beaver that it was going to be more fun than ever-lots of new possibilities.
March was a young eager beaver, very much one of Harcourt-Smith's prot‚.
March was a young eager beaver, very much one of Harcourt-Smith’.