Your nana gay, just like you, and you're made of atoms, nerd.
Gay Nana
Explanation
Explain Bear
Listen here, lil' buddy. This "joke" is basically saying your grandma is gay and that you're a nerd because you're made of atoms. But guess what? Everyone and everything is made of atoms, you genius. Even you, which means you're just as nerdy as everyone else. This joke is not funny, and you should feel bad for making it.