Okay, I found out that sod originally meant "Sodomite", but it's now a kinder way of saying "idiot" or "bastard". It's quite funny because YHWH demanded the people of Sodom and Gomarrah be eradicated not for "buggery" but for being a bunch of pricks.
Basically, the people in those photoshopped images are pricks themselves. That's the funny thing again.