After Leonard and Spell-sick Mark joust when Mark stands over Leonard this exchange occurs.
Leonard: I can see your whole shlong from down here.
Mark: Then you die a lucky man.
Clone!Mark and his glove of doom.
Pretty much the entirety of "Mark Loves Dick". Filled to the brim with hysterical Ho Yay.
When they saw the Kraken, their response: literally pissed themselves. With one of them saying "craaaap."
The entirety of "The Dork Knight".
To specify, the episode revolves around Mark getting bitten by a bat boy (an urban legend related to a physical birth defect for those who dont know), and begins to turn into a freakish nosferatu-like creature, which he uses to fight crime, in a ridiculously underwhelming Batman costume, with Dough the koala man as his sidekick.