The Powerpuff Girls is a Cartoon Network favorite, one with plenty of innuendos and adult jokes. During their original run, there were jokes. Yes, the dirty jokes on The Powerpuff Girls are abundant, and while some were more subtle than others, the grown-up humor is undeniably present throughout the animated series.
Interestingly enough, the show's original development came in 1992 as a short titled "Whoopass Stew!" Obviously that concept wouldn't be geared towards children, but after a name change, the first Powerpuff Girls pilots were shown in 1995 and 1996. While the inappropriate jokes may have been watered down, the adult humor was still slyly present in almost every episode of Powerpuff Girls.
On the Christmas special episode “Twas the Fight Before Christmas,” Santa threatens to put Princess Morbucks on the permanent naughty list. The list itself includes the name “Adolph Schickelgruber.” Adolf Hitler’s grandmother’s name was Schickelgruber.
An impressive little allusion, especially for a show aimed at kids.