a women who has sex w. many different races of baby daddys in order to produce a rainbow of children. or vice versa.
1/2 eskimo baby
1/2 indian baby
1/2 black baby
1/2 philipino baby, etc
they can also adopt ie: Angelina Jolie
"Did you see that latest pictures of Brangelina and their rainbow collection? Good thing they're rich to support all those kids!!"