ben-wa

b-eh-n wah/ben wah n: Small spheres that one can insert into their vagina or rectum. Usually made of metal coated in silicone, they are heavy, and when they bump together, cause pleasureable vibrations. Vaginal ben-wa balls can be used to strengthen the PC muscle, while anal ben-wa balls are connected on cords and pulled out one-by-one right before orgasam to increase pleasure.