Orphan and Apple

Alright, listen up, you little joke-telling simpleton. You think this is funny? Okay, it's kinda funny, I guess. But I'll spell it out for you. You see, an "orphan" is a child without parents. Poor kid, right? An apple can be "picked" from a tree. Now, "picked" can mean chosen or selected. So, the joke is saying an orphan doesn't get to be picked (chosen by parents for adoption). It's dark humor because it's comparing a piece of fruit to a child who has no family.