Which is the meaning of: kill two birds with one stone?
To solve two problems with one action or solution.
Which is the meaning of: be over the moon?
To be extremely happy.
Which is the meaning of: be a tough cookie?
To be a very strong (mentally) person.
Which is the meaning of: chasing rainbows?
To not think realistically.
Which is the meaning of: the ball is in your court?
You have the responsibility to make a decision.
Which is the meaning of: pull the wool over someone's eyes?
To not say the truth, to fool someone.
Which is the meaning of: kill time?
To do an activity in order to make time pass quickly.