Just noticed two of them in Spongebob, one of the best cartoons ever made.
Spongebob tells Patrick, after he said something, that his 'genius' was showing, and he immediately covers his dick. Gee, wonder if he misheard genius as something else... xD
But the best one was just a subtle 'fuck you' from the writers. Spongebob appeared in a charity commercial, and that same charity just happens to support the gays. So two and two were put together, and it was naturally concluded this meant that Spongebob was gay, and a cartoon character was banned from Church.
And what comes out after this? Spongebob and Patrick adopt a clam as their baby, Patrick becomes the layabout husband, Spongebob the worked-to-the-bone house wife, and when the clam grows up and flies away, Patrick gives Spongebob a content, serious look and says "Let's have another"