mandelier Share definition Flag mandelier - the dangling part of the male genitals, i.e., testicles Rich said to Keith, "I ain't no meatgazer, but I couldn't help but see Brian has a huge mandelier, boy, they hang down to his freakin' knees!" mandelier by TooSick4U April 5, 2008 0 0 Get merch Get the mandelier mug. Buy Now — $32.95 See more merch