If a man is married with a family, and has a child with another woman while still married. The bastard child is the the "side kid".
Autumn Jackson would be Bill Cosby's "side kid".
โดย Matt, Jeff, Chad 22 กันยายน 2007
Can you define these popular missing words?
Referring to children you've had outside your marriage with other women.
Got any side kids? Nah just the one with my wife
โดย Toolz 12 กันยายน 2007