an extreme version of jelqing, only used by the most experienced and daring of jelqmaxxers,
consists of jelqing ones shlong with double vise grips on the meat shlong that are tied to a ceiling fan, providing the jelqmaxxer with a constant up and down rotations motion, creating a jiggling effect
created and popularized in japan in the early 2010s
yo bro i just tried out that japanese jiggle jelq you told me about, i gained 3.7 inches of length and 2.1 inches of girth! this is the best extreme jelqing method ever!!