"dude that song is so old."
"i'm sorry, i didn't know music had an expiration date. what about your mom, she's old, but you still listen to her."

Boy: I wonder why I always get a boner when I look into a mirror?
Girl: Because your dick thinks you're a pussy too!

Son - "Dad, I'm gay."
Dad - "I had sex with your mom."
Son - "Huh?"
Dad - "Sorry, I thought we were talking about things that were stupidly obvious."