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crawl back into one's shell
/krɔːl bæk ˈɪntuː wʌnz ʃɛl/◆idiom
withdraw emotionally
After the argument, he crawled back into his shell and refused to talk.
He withdrew emotionally and refused to communicate after the argument.
informal
to retreat emotionally, avoiding interaction or vulnerability
She crawled back into her shell after the breakup and wouldn’t go out with friends.
She emotionally withdrew after the breakup and avoided socializing.
When criticized, he just crawls back into his shell and says nothing.
When criticized, he becomes emotionally closed-off and stops communicating.
Often implies a temporary or situational retreat, not permanent isolation.
Collocations
crawl back into one's shellretreating emotionallyemotional shella metaphorical barrier to protect oneself
Related Phrases
Pro Tip
When to use this phrase
Use 'crawl back into one's shell' when someone becomes quiet or avoids interaction after a negative experience, such as criticism or disappointment. It’s not used for permanent isolation.
Gold Rule
Avoid literal interpretation
This is an idiom. Do not take 'shell' literally—it refers to emotional withdrawal, not a physical object.
Word Origin
The phrase combines the literal action of crawling (moving slowly on hands and knees) with the metaphorical 'shell' (a protective covering, like a turtle's). The turtle's shell symbolizes withdrawal and self-protection, a concept that has been metaphorically extended to human behavior since at least the mid-20th century.
Usage Notes
Used to describe someone becoming emotionally reserved or avoiding communication, often after feeling hurt or overwhelmed. Common in casual conversation but not formal writing.
Word Breakdown
crawl
move slowly in a defensive manner
verbback
return to a previous state
adverbinto one's shell
a metaphor for emotional withdrawal
prepositional phraseEnglish Dictionary