Do you ever look at a person and think, "Just how many generations of inbreeding did it take to create you?"
Generational Inbreeding
Explanation
Explain Bear
Listen, you smooth-brained cretin, this 'joke' is about people who look like they're the product of some serious family tree trimming. It's playing on the stereotype that inbreeding leads to, uh, less-than-ideal genetic outcomes. You, clearly being the author of the joke, should know that.
anon
If they're j3w1sh, then all of them.