B) something expensive
It costs an arm and a leg
B) something confusing
As clear as mud
To be in a risky situation
"to skate on thin ice"
"break a leg!"
A) well done! /
B) have fun! /
C) good luck!
C) good luck!
A) to commit to a decision (often one that makes you nervous)
To take the plunge
something that makes a lot of noise
To ring a bell
To relax
To put your feet up
A) to allow something
to give the green light
to be alert
To be on the ball
To fool / joke someone
To pull someone’s leg
rarely
Once in a blue moon
To be ill
To be under the weather
to suddenly change your mind about something because you are nervous
to get cold feet
to make yourself do something difficult or unpleasant
To bite the bullet
A piece of cake
To avoid talking about something
"to beat around the bush"
To be excluded
To be left in the cold