Till the cows come home
For a very long time.
To be as sick as a dog
To be very sick.
Rise and shine
Wake up and be happy!
Hands down
Without competition.
To be Greek to somebody
To be impossible to understand.
To hold someone's horses
To be patient and wait.
To keep someone's chin up
To be happy.
To be or feel under the weather
To not feel well.
To pull someone's leg
To be just joking.
To get a slap on the wrist
Give someone a mild punishment.
Close, but no cigar
You were close, but you didn't make it.
To be a loose cannon
To be unpredictable.
To be/feel down in the dumps
To be or feel sad or depressed.
To be in the same boat
To be in the same position or unpleasant situation as other people.
To cost an arm and a leg
To be very expensive.
To be tickled pink
To be very happy.