Insults
On the ball
Someone who understands the situation well
Don't let the cat out of the bag
Tell the secret
Keep something at bay
Keep something away
Elvis has left the building
The show is over
Piece of cake
It is very easy
Off your rocker
You are crazy
Let sleeping dogs lie
Do not disturb the situation
Once in a blue moon
Happens very rarely
Heard it on the grapevine
Heard a rumor about someone or something
Last straw
The final problem in a series of problems
Not playing with a full deck
Not very smart
Pull the wool over someone's eyes
To deceive or trick someone
Feel a bit under the weather
Don't feel well
Make a long story short
Leave out the small details and get right to the point
Far cry from
Very different from what was expected
Miss the boat
Someone missed his or her chance
Heard it from the horse's mouth
Heard it directly from the source
Kill two birds with one stone
Accomplish two different things at the same time
Hit the nail on the head
Get the exact answer
Method to my madness
The is actually a reason I am doing it this way
It takes two to tango
Actions or communication need more than one person
Don't put all your eggs in one basket
Do not put all your resources in one place
Every cloud has a silver lining
Something good can come out of every bad situation
Give the benefit of the doubt
Believe someone without proof
Jump on the bandwagon
Join the popular trend or activity