girth vader Share definition Flag A very obese fan at a Star Wars convention wearing a Darth Vader helmet with voice changer. Look at the fat ass over there in the Darth Helmet. That must be Darth's larger brother, 'girth vader' girth vader by Florida Sunshine November 9, 2009 0 0 Get merch Get the girth vader mug. Buy Now — $32.95 See more merch