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.