negative chub Share definition Flag When the extreme grotesque appearance of a female causes your penis to shrink even smaller than its already flaccid position. Aww man, is that fat chick wearing a one-piece denim dress? I think I just got negative chub negative chub by ghamin February 23, 2011 0 0 Get merch Get the negative chub mug. Buy Now — $32.95 See more merch