R
As cool as a cucumber
Someone who can stay calm during difficult moments
TO PULL SOMEONE'S LEG
To joke with someone
HIT THE ROOF
Become extremely angry
IN A NUTSELL
In a few words
TIE THE KNOT
To get married
When pigs fly.
Something that is impossible to happen
To go ballistic
To get really angry.
BE ALL EARS
Carefully listen
TAKE IT EASY
To relax
PIECE OF CAKE
Very easy
THE LIGHTS ARE ONE, BUT NOBODY’S HOME
Someone who is not very smart
This idioms means to become very angry.
PULL YOURSELF TOGETHER
To calm down
A COLD DAY IN JULY
Something that will never happen
GO BANANAS
To get really angry
TO DO A RUNNER (UK)
When you leave without paying
TO KEEP A STRAIGHT FACE
This idioms means, to try not to smile or laugh.
IT'S RAINING CATS AND DOGS
It's raining a lot.
ONCE IN A BLUE MOON
Rarely
TO GO DOWN IN FLAMES
TO FAIL SPECTACULARLY
HAVE YOUR HEAD IN THE CLOUDS
When you're not paying attention
GET A GRIP ON YOURSELF
This idiom means, to get control over your emotions.
DISSOLVE INTO TEARS/LAUGHTER
It means to laugh or cry a lot.
BARE YOUR SOUL
To tell someone your secret thoughts and feelings.
CAT GOT YOUR TONGUE
Can't you speak?