in the pink (of condition)
- in very good health
My grandmother was in the pink of condition when I saw her.
look at/see the world through rose-colored glasses
- to see only the good things about something, to be too optimistic
My friend always looks at the world through rose-colored glasses and he does not believe that some people are dishonest.
pink slip
- a termination notice from a job
I received my pink slip last week and I am now looking for a new job.
see pink elephants
- to see things which are not really there because they are only in your imagination
The man was seeing pink elephants according to those who listened to his story.
tickled pink
- to be very pleased or delighted by someone or something
"My mother was tickled pink that you visited her when you were in town."