black and blue
My shoulder was black and blue after I fell down the stairs.
- the blood of a noble/aristocratic family
Many of the blue bloods of the town went to the opening of the opera.
blue in the face
- to be very angry or upset, to be excited and very emotional
I argued with my supervisor until I was blue in the face.
- of superior quality or distinction, the best of a group
A blue-ribbon panel of experts were asked to suggest a new policy for the city.
get/have the blues
- to become sad or depressed
The dull cloudy weather has caused me to get the blues.
out of the blue
- without any warning, by surprise (like coming out of a blue sky)
Out of the blue my friend decided to quit his job and go to Europe.
talk a blue streak
- to talk very much and very rapidly
The woman beside me on the bus talked a blue streak for most of the journey.
talk until one is blue in the face
- to talk until one is exhausted
I talked until I was blue in the face but I could not change my teacher's mind about my essay.