(to be) full of hot air- a person who talks a lot and says things that aren't completely true.He's always talking about how he is going to find gold in the river. I don't believe him. I think he'sfull of hot air.
when it rains it pours- nothing happens and then everything happens. Nobody ever visits my house and then 10 people come. When it rains, it pours.
sunny (as an adjective)- happy or pleasant. The new office girl has a very sunny personality.
a breeze- easy. That test was a breeze.
a fair-weathered friend- a person who is only your friend when everything is good.
under the weather- feeling bad. Joan felt under the weather after she failed her history exam.
cloud nine- wonderful place or feeling. After I got my dream job I was on cloud nine.
weather the storm- survive during difficult times. Even though my father lost his job, we were able to weather the storm. Now everything is better.