peanut girl Share definition Flag A girl who suffers from primordial dwarfism, littlest bitch in the class. Man, that girl was def a peanut girl, she had proportionally small arms and legs to her small ass head. peanut girl by jaclacxx January 6, 2011 0 0 Get merch Get the peanut girl mug. Buy Now — $32.95 See more merch