While most of the Man of Steel's dirtier moments have taken place in the comics, there are quite a few adult jokes in the Superman cartoon. In fact, things get downright weird in Superman: The Animated Series. Whether it's a joke made in the background or something said by one of Supes's many villains, there is no shortage of surprisingly dirty lines on the show. You might wonder if the censors watched these episodes before they hit the air at all.
They're not the most taboo adult jokes in cartoons, but it's still shocking to hear them on a show about the world's most respectable hero. You won't catch Superman himself making questionable remarks at female characters or anything of the sort, but his cast of supporting characters apparently have the filthiest minds in Metropolis.
Just be warned: once you look at the dirtiest adult jokes in Superman: The Animated Series, you'll never look at the Big Blue Boy Scout the same way again.
When it comes to the Joker and Harley Quinn, you can't really say those two "make love," can you? In Season 2, episode 16, "World's Finest," a criminal named Binko is interrogated by Batman about the Clown Prince of Crime's whereabouts. The criminal responds that the Joker is "making ha-ha with Harley Quinn."
Season 2, episode 10, "Double Dose," is full of adult winks to the audience. But nothing tops the dialogue between villains Livewire and Parasite. Just look at this exchange:
Livewire: You can look, but don't touch.
Parasite: Don't be afraid, I know how to control my power.
Livewire: That's what they all say.
In Season 4, episode 2, "Legacy," Superman turns evil and joins Darkseid after being brainwashed into thinking he's the supervillain's adopted son. At one point, it's made clear that Darkseid has been rewarding Supes for his evil deeds with nights with his group of female warriors. The Furies just love to rub up on the Man of Steel when he gets home.
Things get really dirty in Season 2, episode 10, "Double Dose." In order to fight the effects of both Livewire and Parasite's powers, Superman is forced to wear a full latex body suit to take them down. Livewire wastes no time pointing out the obvious to Parasite: "Well what do you know? The boy scout brought protection!"
Still don't get it? Watch the clip and think about what that shiny, transparent, protective sheath reminds you of.