Feeling ... the weather.
Feeling under the weather.
Don't put all your eggs in one ....
Don't put all your eggs in one basket.
I'll be glad to see the ... of him.
I'll be glad to see the back of him.
... your tongue.
Bite your tongue.
Cross that ... when you come to it.
Cross that bridge when you come to it.
... the hatchet.
Bury the hatchet.
She's a ... horse.
She's a dark horse.
Take it with a ... of salt.
Take it with a grain of salt.
Once in a ... moon.
Once in a blue moon.
Kill ... birds with one stone.
Kill two birds with one stone.
... the hook.
Off the hook.
Burn the ... oil.
Burn the midnight oil.
The best thing since ... bread.
The best thing since sliced bread.
You're ... up the wrong tree.
You're barking up the wrong tree.
The ball is in your ....
The ball is in your court.
It's a ... of cake.
It's a piece of cake.
Bite off more than you can ....
Bite off more than you can chew.
Let's ... the knot.
Let's tie the knot.
I ... a rat.
I smell a rat.
Close, but no ....
Close, but no cigar.
It's a ... in the bucket.
It's a drop in the bucket.
At the ... of a hat.
At the drop of a hat.
Actions ... louder than words.
Actions speak louder than words.
Curiosity ... the cat.
Curiosity killed the cat.
It's a ... in disguise.
It's a blessing in disguise.
Every cloud has a ... lining.
Every cloud has a silver lining.
It's the ... of both worlds.
It's the best of both worlds.
Sit on the ....
Sit on the fence.
As ... as a rock.
As solid as a rock.
A leopard can't ... its spots.
A leopard can't change its spots.
... on the bandwagon.
Jump on the bandwagon.
Let ... dogs lie.
Let sleeping dogs lie.