baby boy

noun4

1. •
   A very young male human being, from birth to a couple of years old.
2. •
   (slang) The youngest son in a family.

   • My baby boy was accepted to Columbia!
3. •
   (slang) A term of endearment for a man.
4. •
   (disapproving) A man who is immature or infantile.

   • Tyrese stars as Jody, a misguided young Black man who is really just a "baby boy" finally forced to face the commitments of real life. — 2001