What is it?
Don't let the cat out of the bag.
What is it?
donkey work
What is it?
A leopard doesn't change its spots.
What is it?
Let sleeping dogs lie.
What is it?
The lion's share
What is it?
lock the stable door after the horse has bolted.
What is it?
What is it?
Pigs might fly
What is it?
Separate the sheep from the goats
What is it?
A snail's pace
What is it?
The straw that breaks the camels back (the last straw)
What is it?
Teach an old dog new tricks
