From Longman Dictionary of Contemporary Englishout of your shellout of your shellSHY#becoming less shy and more confident and willing to talk to people I had hoped that university would bring him out of his shell. She’s started to come out of her shell a little. → shell
Examples from the Corpus
out of your shell• Middleschoolers, their teachers tell me, are as endearing as chicks just pecking out of their shells.• Mones, for example, began peeking out of his shell of mortification. 