Adult jokes in cartoons is a tradition as old as time, or at least as old as cartoons themselves. Considering the Heroes in a Half-Shell have a long history, both animated and live-action (not to mention comics and even rip-offs), it should come as no surprise that there are a fair number of adult jokes in Teenage Mutant Ninja Turtles history.
It almost seems like a badge of honor for writers to sneak adult jokes into kids movies that will go over the target demographic's heads (like the gems hidden all over The Incredibles), and it sometimes works masterfully. Other times these jokes feel so forced and lame that they can only elicit groans. That's the case with most of the adult jokes in TMNT.
Here are a variety of inappropriate Teenage Mutant Ninja Turtles jokes from across their long, multi-formatted history that might make you chuckle or gasp or both.