Abby O'Neil Share definition Flag The worst, rudest, meanest, smallest, ugliest person you'll ever see or meet. girl 1: did you see Abby O'Neil? Girl 2: yeah she is the worst and she said you were fake Abby O'Neil by Fight-Me-1234 February 14, 2019 0 0 Get merch Get the Abby O'Neil mug. Buy Now — $32.95 See more merch