A boomerang is supposed to return when it leaves your hand. But a boomerang kid, well, that’s something else entirely. Do you have a boomerang kid? That’s a term for an adult child that’s returned home, like a boomerang, and now lives with you again. If so, you’re not alone. We’ll talk about what you can do about it. You're not alone if you have a boomerang kid living in your basement. The latest Boomerang Kids Survey by Thrivent, conducted in April, found that 46% of parents have had an adult child move back in with them at some point. This trend brings unique financial challenges for both parents and children.