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