Definition & Meaning of "nom"in English

What does "nom" mean in casual slang?

The structure is an onomatopoeic word that imitates the sound of someone chewing or eating with enjoyment, often repeated as "nom nom nom." It is used to describe tasty or delicious food, or to express pleasure while eating, especially in online comments, captions, or cute contexts. People typically say "nom" when reacting to a photo of a meal, such as "That cake looks nom" or "Nom, I'm digging in."