Busy-as-a-beaver
Also,
busy as a bee
. Hardworking, very industrious, as in
With all her activities, Sue is always busy as a bee
, or
Bob’s busy as a beaver trying to finish painting before it rains
. The comparison to beavers dates from the late 1700s, the variant from the late 1300s. Also see
    eager beaver
    work like a beaver
Read Also:
- Busy-as-a-bee  adjective Examples Word Origin 
- Busy-beaver  busy beaver Historical Examples Little Jack Rabbit’s Adventures David Cory Little Jack Rabbit’s Adventures David Cory 
- Busy-bee  busy bee Historical Examples Gideon’s Band George W. Cable The Three Commanders W.H.G. Kingston Jaffery William J. Locke Bertha and Her Baptism Nehemiah Adams Blackwood’s Edinburgh Magazine, Vol. 66, No 405, July 1849 Various Crying for the Light, Vol. 2 [of 3] J. Ewing Ritchie The Emperor, Complete Georg Ebers Flemish Legends Charles de Coster […] 
- Busybody  a person who pries into or meddles in the affairs of others. Historical Examples The Visions of the Sleeping Bard Ellis Wynne The Tale of Snowball Lamb Arthur Bailey Lorraine Robert W. Chambers The Tale of the The Muley Cow Arthur Scott Bailey The Tale of Betsy Butterfly Arthur Scott Bailey A Lecture On Heads […] 
- Busy-lizzie  noun a balsaminaceous plant, Impatiens balsamina, that has pink, red, or white flowers and is often grown as a pot plant 
