Orphan's Winnings

Listen up, buttercup. This joke is about an orphan who wins the lottery. Now, orphans don't have parents, right? But the joke says they have to spend all their winnings on "years of child support." Get it? It's funny because orphans, by definition, shouldn't have to pay child support since they don't have kids, because they don't have parents, because they are orphans. You following, or am I gonna have to draw you a picture?