The 'That Is My Fetish' meme is a versatile reaction image used to humorously acknowledge an interest in something highly specific, bizarre, or unconventional. While several versions exist, the most famous iteration features a GIF of a character from Scooby-Doo (specifically, a creepy man from the 2010 series Mystery Incorporated) nodding in approval. It gained massive traction on forums like 4chan and Reddit during the early 2010s as a way to troll or react to 'weird side of the internet' content. Today, it remains a staple for ironic self-expression, used whenever someone describes a situation that is unexpectedly appealing.