"What are you doing?"
"Can't you tell? I'm tracing my varicose veins."
"eh..."
"I call this one the Tigris, and this one the Euphrates. In between it's the fertile crescent! (that's for the ladies!)"

That's from this cartoon they show at night on cartoon network called Home Videos that I'm watching right now. I didn't really get the show at first, but now I laugh so hard.