I'm a big boy/girl now

I'm a big boy/girl now

I am no longer a baby or very young child, depending on how old the speaker is. Mommy says I'm a big girl now, since I pee in the potty. I'm a big boy now, Mom. Can't I at least stay out till 10?
See also: big, boy, girl, now
Farlex Dictionary of Idioms.
See also:
  • big deal
  • big deal!
  • a big deal
  • be (not) big on (something)
  • Big D
  • big-D
  • big on
  • big on (something)
  • do something in a big/small way
  • in a big way