12 is the only "filler" episode left. It's still hilarious. And they'll deal with plot holes/establish some important stuff for later. From the end of 12 on there will be increasingly larger "OMGWTFBBQ?!" moments in each episode. Once or twice they'll let off the wtf gas a little for one episode, but it'll come back twice as hard on the next one.
Like, seriously, the plot twists so far are NOTHING compared to what will come.
--
assert(!hotterThan(foo, "Hot Nymphomaniacal Lesbian Mind-Controlling Dominatrix Fairy Doctors with glasses"))