Nom-block Share definition Flag To block one's nom.When a buddy refuses you a bite of whatever they're eating. Man A - Dude, can I have a bite of your sandwich?Man B - No.Man A - Arrr man. Nom-blocked. Nom-block by TomJ-witz April 14, 2010 0 0 Get merch Get the Nom-block mug. Buy Now — $32.95 See more merch