out of one's shell

out of (one's) shell

Less shy, reserved, or reticent and in a more sociable, outgoing, or enthusiastic state. Samantha was quite a quiet girl growing up, but she really started coming out of her shell in college. Jack is actually a very funny, engaging guy once he's out of his shell.
See also: of, out, shell
Farlex Dictionary of Idioms.

out of one's shell

see under in one's shell.
See also: of, out, shell
The American Heritage® Dictionary of Idioms by Christine Ammer.
See also:
  • out of (one's) shell
  • come out of one's shell, to
  • be out of (one's) shell
  • not a peep from/out of (someone)
  • backward(s) about coming forward
  • have it going on
  • have a couple
  • have a few
  • have had a few
  • jump (one's) bones