Zip your lip.
"What is to be quiet?"
Keep your chin up.
What is staying positive?
Hold your horses!
What is slow down/be patient?
Busy bee
What is being very busy?
Piece of cake.
What is something is very easy?
Hold your tongue
What is to stop talking?
What is feeling sick or ill?
Hit the sack.
What is go to bed?
It's raining cats and dogs!
What is it's raining a lot?
In a pickle.
What is being in trouble?
What is to tell a secret/let a secret out?
Butterflies in your stomach
What is feeling nervous?
Bend over backwards.
What is go out of your way?
Pigging out
What is eating a lot?
Spill the tea
What is tell secrets?
Let the cat out of the bag
What is to slip up and tell a secret?
Don't cry over spilled milk!
What is don't let something bother you?
Jump the gun.
What is act before something happens?
Fish out of water
What is feeling misplaced/being in a new situation?
Cool as a cucumber
What is relaxed?
Break the ice
What is to get to know someone/start a conversation?
In hot water.
What is being in trouble?
Beat around the bush.
What is talk about something without coming up with an answer? / Avoid the whole point
Elephant in the room
What is something is very obviously wrong/there is an awkward problem?
The way the cookie crumbles.
What is that's just the way things go sometimes?