said when you think that there is no chance at all of something happening.
pigs can fly / when pigs fly (UK pigs might fly)
completely different from each other.
To be (like) chalk and cheese
to be extremely expensive.
cost an arm and a leg
to pay too much money for something.
PAY THROUGH THE NOSE (FOR STH / TO DO STH...)
to have very good and detailed knowledge of something.
Know sth/sb like the back of sb’s hand
to recognize that something is not as it appears to be or that something dishonest is happening.
SMELL A RAT
to go to bed in order to sleep.
HIT THE SACK / HAY
to always eat a lot of food.
eat like a horse
criticisms of or warnings to a particular person that have no effect on that person.
(like) water off a duck's back
Very rarely.
once in a blue moon
to describe exactly what is causing a situation or problem.
hit the nail on the head
to have a plan or intention.
have something in mind (FOR STH/TO DO STH)
to leave a place or begin a journey.
HIT THE ROAD
to work late into the night.
burn the midnight oil
to study.
HIT THE BOOKS
Sth you are good at or enjoy doing.
BE SB'S CUP OF TEA
something that you say when it is raining heavily.
it's raining cats and dogs!
to feel very nervous, usually about something you are going to do.
Get/have butterflies in sb’s stomach
slightly ill.
(be / look / feel) under the weather
Sth is given to you free by a business.
be on the house
used for wishing someone good luck,
especially before a performance.
BREAK A LEG!
something that is very easy to do.
a piece of cake
to try to persuade someone to believe something that is not true, as a joke.
pull sb's leg
to make someone extremely angry
make sb's blood boil
to allow a secret to be known, usually without intending to.
let the cat out of the bag
used to tell someone that you cannot accept an invitation now, but would like to do so at a later time.
TAKE A RAIN CHECK (ON STH)
to always eat a small amount of food.
eat like a bird
to sleep very well, without being woken by any noises.
sleep like a log.
to be extremely happy and excited.
be on cloud nine
to become extremely angry.
hit the roof / ceiling = go through the roof
Stop or wait
HOLD YOUR HORSES
theperson who someone loves most and is very proud of.
THE APPLE OF SB'S EYE