Bonus points if it's something you should possibly be ashamed of but aren't.
So while having a long-awaited, much-needed cybering session, my S/O and I made a completely serious World of Warcraft allusion.
We made up an achievement and the reward it would get. It even got a pun name: "'Down Where it's Wetter: Spend seven nights trapped in musky flesh.'"
the prize? a giant sperm mount.