The series is generally clean but there are some episodes that have dirty jokes. For example, in the episode "How Guardians of the Galaxy Should Have Ended", Star Lord calls Drax's father a "hornball"

Occasional mild sexual references and flirting

Some partial nudity; certain female characters also wear revealing clothing.

In "How Pulp Fiction Should Have Ended", there is some blood, and strong violence.

In "How Iron Man 2 Should have ended" Whiplash decapitates Iron Man while he suits up his mark V armor

Nothing too bad, but some mild comedic violence, like when Darth Vader chops off Luke's hand for example.

The word "slut" was used.

The word "Douchebag" was used.

"Suck," "god," "crap," "piss," one use of "hell" in the Harry Potter HISHE, "a-hole" abbreviations, and a "WTF" acronym in the "Harry Potter and the Best Picture Summary" episode respectively. All expletives stronger than the ones listed are usually bleeped out with the mouthing of said expletives from maskless characters usually covered up with a "cuss" bar.

Almost none, words like "crap", "pissed", "turd" and insults like "stupid" and "idiot" appear somewhat often.

Actual bad words are extremely rare and are censored in some way.

In The Social Network episode "asshole" is bleeped and near the end of the episode someone says "don't be an a-hole" (the actual word is not said this time so it isn't bleeped).

Near the end of the Deadpool episode, Deadpool swears a few times but is bleeped every time.

Occasional moments of almost cursing that is cut off before anyone can say anything.

Alcohol is sometimes consumed and cigarettes are sometimes smoked