Top definition
a child in a family that looks the opposite of all thier siblings, thhus looking like a child from an affair.
Sarahs a total affair child shes got dark hair and blue eyes while her siblings are all blond with green eyes!

we always knew her mom was a whore!
by wannafucksobad! May 29, 2009
Get the mug
Get a affair child mug for your grandma Riley.