0+1 Share definition Flag Straight Sex between a female(0) and a male(1). Pete inserted his (1) inside Olivia's (0) and it was the best he eveer had (0+1). 0+1 by ***Hollywood Starz (KWA)*** December 25, 2006 0 0 Get merch Get the 0+1 mug. Buy Now — $32.95 See more merch