go into one's shell
idiomPart ofshell
go into one's shell — idiom
1. to become quieter and less willing to talk to people, often because of embarrass
1.idiom
Definition
to become quieter and less willing to talk to people, often because of embarrassment, shyness, or emotional hurt
Example
After being laughed at in class, Linh went into her shell and stopped raising her hand.
When strangers visit, the little boy goes into his shell and hides behind his mother.