Top definition
A child who was conceived at an adult swinger party. They have the genetic traces of many of the applicants involved.
PERSON ONE: "jonny looks like an asian, but he has curly hair?"

PERSON TWO: "he's obviously a swinger baby"

PERSON ONE: "okay that makes sense".
by the.other.guy September 21, 2010
Get the mug
Get a Swinger Baby mug for your sister-in-law Sarah.