head
Stop talking, keep quiet
Break a leg
Good luck (usually for a performance)
In hot water
In trouble
Cold feet
Nervous about something
Go bananas
Go crazy, wild, goofy
See eye to eye
Agree on something, have the same opinion or perspective
Cost an arm and a leg
Very expensive
Burn bridges
Say or do something bad that can't be undone, end a friendship or relationship
On thin ice
Doing something risky, being very close to getting yourself in trouble
Spill the beans
Tell a secret
Wrap your head around it
Understand something
Back you into a corner
Put you in a difficult, awkward, or embarrassing position.
Sell like hotcakes
Sells out quickly, very popular item to buy
Give the cold shoulder
Ignore someone
Two peas in a pod
When 2 people are very similar in many ways
Play it by ear
Go with the flow, not planned, see how things turn out
Put your foot in your mouth
Accidentally say something embarrassing
Add fuel to the fire
To say or do something that makes the situation worse
Break the ice/ice breaker
Get things started, say something to relieve a tense situation.
Bite off more than you can chew
Take on too much, too big of a project
Face the music
face/accept the consequences of your actions
Pour your heart out
To tell someone about private or emotional things
Blow off steam
Do something fun that helps relieve stress
Snowball effect
Put all your eggs in 1 basket
To focus too much on just one thing, obsess over something