I think it means that someone appears to be depressed.
Figuratively, blue could mean sad, such as "I'm feeling blue," or rare, such as "Once in a blue moon."
It's more common to use blue as a figurative meaning for sad.
It means sad.
endless sphere of blue imaginings
UNKNOWN
an idiomatic expression
lt means like extremly angry.
I believe you are thinking of green-eyed monster, which is a symbol for jealousy.
There is another idiomatic expression 'dont count your chickens before they are hatched'. Both expressions mean that you should not make a decision until you know what lies ahead. Only decide when you are certain of the facts
babysitting
traitor, backbiter
Think about this and you can figure it out. An idiom seems to mean one thing but actually means another. Does "with regard" mean just what it seems to? Yes, it does. Therefore, this phrase is not an idiomatic expression.
This is slang - it means your spouse.
It means that it is extremely easy.
it is just an insult
Force someone to do something
UNKNOWN
This mean someone is pretending to have good intentions, but in fact, it's just the opposite.
It can mean that something is difficult or that a person is stubborn.
an idiomatic expression
lt means like extremly angry.