Have a problem with the butt in your bikini? Is it gathering at the top with too much material making your butt look dumpy? Maybe you need to try on a Pucker Butt Bikini. Pucker Bikinis, also referred to as scrunchie butt bikiniâ€™s and are easily defined by the pucker in the back. Pucker Bottoms are discernible by how nicely they hug the curves in your butt check. The Pucker Butt Bikini is very pleasing to the eye and extremely cozy to wear.