Bite off more than you can chew
To take on a task that is way too big
Let your hair down
Relax
See eye to eye
agree with someone
Beat around the bush
Avoid answering a question
Turn a blind eye
Pretend not to notice
Take a nosedive
Rapid drop or decrease in value
Have a blast
Enjoy something and have fun
Jump on the bandwagon
Join a popular trend
An arm and a leg
A lot of money
Out of the blue
Happen unexpectedly
To wear your heart on your sleeve
Showing your emotions and making your feelings clear.
Hold your horses
Calm down
Raining cats and dogs
Raining heavily
Kill two birds with onestone
To solve two problems at a time with just one action
Once in a blue moon
Very rarely
Eat your heart out
Be jealous
At the drop of a hat
Immediately
Curiosity killed the cat
Being too curious can get you into trouble
Give the benefit of doubt
Believe someone’s statement without proof
Don’t judge a book by its cover
Don’t judge something by its appearance
Take with a grain/pinch ofsalt
To doubt the accuracy of information
Hit the sack / sheets / hay
To go to bed.
It takes two to tango
Both people involved in a bad situation are responsible for it.