Knows something about everything
I would describe someone as a walking Christmas tree if that person was wearing a ridiculously excessive amount of decoration.
The LITERAL meaning would be to receive a set of papers saying you may walk.
Yes, because you cannot literally walk on air.
"To be" is not an idiom - it's a verb.
The idiom "apple shiner" means the teacher's pet.
"walking encyclopedia"
Walking on air: to be exuberantly happy, excited, and joyful
Sam Winchester
You're more likely to find definitions in a dictionary - there are even idiom dictionaries online.
I would describe someone as a walking Christmas tree if that person was wearing a ridiculously excessive amount of decoration.
The idiom "walk on clouds" means to feel extremely happy or elated, as if one were floating or walking on air. It refers to a state of complete euphoria or bliss.
Someone getting their walking papers is just like getting "the pink slip". It means he or she has received his/her notice of termination (the "walking papers" or "pink slip") and is no longer of the company.The idiom of "getting walking papers" has been extended beyond the workplace and into other social situations: in which case it generally means the recipient is being told to get lost and don't come back. For example, a girlfriend dumping a cheating boyfriend can be said to be "giving him his walking papers".
You can be walking a mile in their moccasins, or seeing things from their point of view, or putting yourself in their shoes.
The LITERAL meaning would be to receive a set of papers saying you may walk.
The person called the "walking encyclopedia" is often someone who has an extensive knowledge on a wide range of topics and can provide detailed information without needing to reference external sources. This term is typically used to describe individuals who seem to have an encyclopedic knowledge and can answer questions on various subjects off the top of their heads.
Yes, because you cannot literally walk on air.
It means that you are fired from your job. You are no longer employed by the company. You have to find another job. Your papers are your resume.