100p Share definition Flag The upmost of certainties. A declaration of unwavering commitment. 100% dedication Guy 1: "Are nose beers on the agenda tonight?"Guy 2: "100p"Guy 3: "I'm 80p for nose beers" (do not be Guy 3) 100p by 5T1NGR4Y June 12, 2019 0 0 Get merch Get the 100p mug. Buy Now — $32.95 See more merch