2011-01-08
Explanation
This comic consists of a single graph plotting "Appropriateness of Chewbacca Impression" (Y-axis) against "Point During Sex" (X-axis), with the X-axis labeled with stages: Foreplay, Intercourse, Orgasm, and Cuddling. The line on the graph stays flat at zero across all stages -- meaning there is never an appropriate time during sex to do a Chewbacca impression. Below the graph is the caption: "You learn a lot during the first year of a relationship."
The humor comes from the implied backstory: someone (presumably the comic'''s everyman character) apparently attempted a Chewbacca impression at some point during sex -- likely thinking one of those moments might be a good time for it -- and learned the hard way that the answer is a resounding "never." The graph format, typically used for scientific data, gives the joke a faux-academic tone that makes the absurd subject matter even funnier. The caption about "the first year of a relationship" suggests this was a lesson learned through painful personal experience, the kind of mistake you only make once.
The votey panel drives the joke home: a woman says "I'''m never sleeping with you again" while the man responds with "H-R-R-R!" -- the onomatopoeia for a Chewbacca growl -- demonstrating that he has not, in fact, learned his lesson. The fact that he'''s still doing the impression even as he'''s being told it'''s a relationship-ender is the perfect absurd capper.