For a very long time
until the COWS come home
Be extremely keen
an eager BEAVER
Solve two problems with one action
kill two BIRDS with one stone
The majority of.
the LION’s share
Get away from difficult & competitive routine/lifestyle
escape the RAT race
An illness
a bug
Take decisive action to solve a difficult problem
take the BULL by the horns
Be fidgety or restless
ANTS in one's pants
Be very clumsy & destructive
like a BULL in a china shop