I remember reading about nigz in Afreaka doing this a few years ago.
I wouldn't doubt that rabbis did something similar as part of a sacred ceremony hundreds of years back, no doubt ingesting some of the sacred materials as well.
I'd bet the kid in the thread is busting everyone's balls. However, his "sense" of humor shows how judaized much of the West is when it comes to humor etc. So scatological. A jew would love this.