Sharpen your biting wit. Bring your "A" game of comedy to the table. Put your fierce sense of humor to the test. We are challenging you to:

We have called upon an ancient device of great spontaneous-laugh-inducing power to aid you in this quest: the comedic image caption. Your weapon, a single screenshot. Its ammunition, your words. Together they combine to become a force capable of compelling even villains such as Paris to roll on the floor laughing her ass off.
Some will fail. Some will deliver. Some epic lulz will most certainly be had. Full details can be found in this forum thread.