rubbler Share definition Flag (v) the act of sneaking up behind a sitting victim and bouncing your bare scrotum up and down on their head repeatedly as if playing the maracas. "Ray dislikes the beltbuckle, therefore we subjected him to the rubbler" rubbler by joah March 20, 2005 0 0 Get merch Get the rubbler mug. Buy Now — $32.95 See more merch