To pull someone's leg
to make someone happy about something
to make someone uncomfortable or anxious
to fool someone or to joke with someone
To bite a bullet
to make yourself do something difficult or unpleasant
to do something that makes someone else uncomfortable
to do something that makes you nervous
'A piece of cake' to describe something
very easy
very funny
very sweet
To take the plunge
To fall down (from a very high place)
To make a choice (especially between two similar options
To commit to a decision (often one that makes you nervous)
Once in a blue moon
never
usually
rarely
To put your feet up
to be tired
to relax
to be clumsy
To be left in the cold
to be freezing
to be alone
to be excluded
To cost an arm and a leg
Something of low quality
Something cheap
something expensive
As clear as mud
something brown
something confusing
something obvious
To Speak of the Devil
the person who were talking about unexpectedly arrives
to have an uncomfortable conversation
to talk about a person you don't like.
To be under the weather
to be ill
to be sad
to be strong
To give the green light
to like something
to prohibit something
to allow something
To break a leg
to have fun
to have good luck
to do a job well done
To get cold feet
suddenly change your emotion eg: happy to sad
suddenly change your mind about sth because yo're nervous
to be anxious about something
To skate on thin ice
to be in a risky situation
to do something challeging
to not like something you have to do
To ring a bell
Something that sounds familiar
To get attention
Something that makes a lot of noise
To beat around the bush
to avoid talking about something
to show disagreement about something
to take a long time to do something
to be on the ball
to be alert
to be on top
to be funny