iCum Share definition Flag what happens when mac fanboys get their hands on the iphone/new shitty mac book mac fanboy 1: OMG i just stared at an iphone for 30 iSeconds and i iCummed in my iPants!!!!! regular person: wtf iCum by nick ryan August 26, 2007 0 0 Get merch Get the iCum mug. Buy Now — $32.95 See more merch