A wild goose chase.
A search for something that cannot be found.
Doing something just for fun.
Looking for a goose.
Looking for something in a bird costume.
The lion's share.
The boss's duty.
The majority.
The most important.
The bravest.
Take the bull by the horns.
Go riding on a bull.
Fight a bull.
Get on with doing a difficult task.
Compete against someone.
To cry wolf.
To cry a lot.
To howl like a wolf.
To raise a false alarm or over exaggerate a situation.
To shout loudly.
Elephant in the room.
An obvious problem that people avoid talking about.
A big person in the room.
An ugly object.
Something too big for the space.
Dog eat dog.
Live without caring.
To try hard.
Highly competitive or ruthless.
You beat someone who is the same as you.
Fish out of water.
Someone who can't breathe.
Someone who can't swim very well.
Someone who is on land.
Someone who feels out of place in their surroundings.
Kill two birds with one stone.
To throw stones at targets.
To go hunting.
To achieve two goals with on action.
To hate birds.
To let the cat out of the bag.
To win a competition.
To gossip about something.
To release an animal out of a cage.
To reveal a secret without the intention of doing so.
To make a beeline for.
To run after a bee stings you.
To run away from a bee.
To go straight for something or someone.
To make a buzzing noise for a long time.
Curiosity killed the cat.
Being too curious can lead to good things.
Being too curious can lead to trouble.
Cat got your tongue?
Why are you so quiet?
Why are you not eating anything?
To fight like cats and dogs.
To fight a lot.
To fight very noisily.
To look like the cat that got the cream.
To have a satisfied appearance.
To look dirty.
To rain like cats and dogs.
To rain heavily.
To rain lightly.
Every dog has its day.
Everyone can be rich.
Everyone has the chance to be the boss.
Everyone succeeds eventually.
Everyone can pass an exam.
