get/have gray hair
- to have one's hair turn gray from stress
Our teacher is getting gray hair from all the stress.
a gray area
- a question that is not clearly defined and may have a broad or more than one answer, neither black or white
The issue of the tax on children's toys was a gray area for the accountant.
- brains, intelligence
I wish that my friend would use his gray matter more effectively when he is making his crazy plans.
- the selling of towels or sheets at a reduced price
We went to the white sale at the department store to buy some new sheets.
- an event that requires guests to wear formal dress such as men wearing white bow ties with formal evening dress
I attended a white-tie dinner in honor of the president of our university.
- to cover up or gloss over faults/errors/wrongdoing
The government was accused of trying to whitewash the scandal about the illegal money.
with flying colors
- with great or total success
My friend passed the course with flying colors and she now wants to go out and celebrate.
- extremely timid, cowardly
The man is yellow-bellied and is never willing to fight for what is right.