"3D Porn Cartoon" refers to a specific genre of adult animation where the content is presented in three-dimensional graphics, similar to CGI (Computer Generated Imagery) used in mainstream movies and video games. These cartoons typically involve adult characters engaging in sexual acts or situations, often with exaggerated or supernatural features that are common in traditional animated cartoons. The 3D aspect adds depth and realism to the visuals, making for an immersive experience for viewers.