You can say "gave the cold shoulder," which means they pretended not to see someone.
My understanding, it is the equivalent of the 800 pound gorilla or something very significant being ignored.
You have ignored or ostracized him. This often means that you and your friends will ignore the person even if they are standing right there talking.
It means that you were "coldly" ignored or rebuffed, as though someone shut the door and left you outside in the cold weather.
It means that problems or comments (criticism, insult) have no effect on the individual, and are easily dismissed. Just as water will not adhere to the oiled feather of a duck, and is ignored by the duck, a negative remark can be ignored. This is analogous to the "stick and stones" idiom.
Idiom is correct.
what is a idiom about a cat
"To be" is not an idiom - it's a verb.
The idiom "apple shiner" means the teacher's pet.
An idiom misuse is to use and idiom in a wrong way that doesn't make sense.
The idiom for 'larger than life' is "a force of nature."
It is a idiom.
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