"An arm and a leg" - very expensive.
● The taxi trip home cost me an arm and a leg.
"Back to the drawing board" - when an attempt fails and you need to start again.
● Ok, my plan for finding a Vietnamese wife online didn't work, so I guess it's back to the drawing board.
"The ball is in your court" - it is you to make the decision/to take responsibility.
● I've given my side of the story and now the ball is in your court.
"Happy to see the back of somebody" - glad when someone leaves.
● Peter has just lost his job. Good! I will be happy to see the back of him!
"To cut corners" - to do something badly to save money
● Cutting corners by installing cheap or illegal software is not a way to run a business.
"To feel under the weather" - to feel ill.
● I can't come to work today because I feel a bit under the weather.
"It takes two to tango" - actions need more than one person (usually negative)
● Usually, in a relationship it isn't always one person at fault... it takes two to tango.
"Once in a blue moon" - when something happens so rarely.
● When I help babushki, they say thank you once in a blue moon.
"Wouldn't be caught dead" - would never like to do something.
● Me, wear a wig??? I wouldn't be caught dead wearing a wig!!!