Define Baby Brother Meaning

Someones kid brother, whom they refer to as a baby, despite their brothers actual age.

A Tiny person that can be annoying and fun to pick on.
They sometimes hit you with golf clubs in an attempt to ask you to play.
When in a car they scream and have a loud annoying laugh while you watch a movie, which totaly ruins it.
Baby Brothers rarly are good,quiet, can talk, and dont ruin laptops with sticky hands and pop their mother so kindly gave to them.

when your mom has another kid long after she should have stopped because someone forgot to use birth control.

First the babay shits in the girl's pussy then as he is doing this the girl does an extroadanarily hard position to sock the little boys cock while it's crapping. Then they start rolling on the ground preferrably down a large hill.

When two guys receive a blowjob from the same girl. Similar to Eskimo Brothers, but called Baby-Bird Brothers due to the similar action a mother bird uses to feed her young.