That's the first full-body blep I've seen. Everything gets in on it, from eyebrows to elbows. You can even tell that he rocked up onto his toes at one point.

I don't know if it's connected to the above, but this one makes me a bit uncomfortable, as if I'm intruding on an emotional/vulnerable moment. His blep here seems akin to the self-soothing lip licking that cats do when they're injured or anxious.