Orphan's Sex Toy Conundrum: An Uncle's Absence is the Punchline?! (Oh My!)

Listen up, you knucklehead! So, you know orphans, right? No parents. And uncles? Well, they ain't supposed to be doin' stuff they shouldn't. The punchline is implying that the uncle might be a substitute sexual figure and that is why the orphan needs a toy to replace the uncle.