Omnomnomnom (sometimes written nomnomnom or, when in the plural, nomz) is a lolspeak expression describing great joy in eating food. To describe the action of eating, when you eat, or how you eat, cats will sometimes say noms (e.g. my daily noms have increased, thank you for our daily noms). O hai. Ceiling Cat says this article is a . You can help My English Wiki by expanding it.