What does 'black and blue' mean?
It means you have some bruises on you
What does 'caught red handed' mean?
Caught doing something wrong
What does 'roll out the red carpet' mean?
Treat someone like royalty, treat them very well
What does 'in the dark' mean?
You don't know about something
What does 'once in a blue moon' mean?
Not very often
What does 'see red' mean?
Very angry
What does 'have a green thumb' mean?
Good at gardening and working with plants