“Nom Nom Nom” is said to have originated with the Cookie Monster. *nom nom nom* It has become a preferred way to express voracious eating. Today the meme has spread to everyday conversation.
Jen – “How’s that sandwich?”
Mark – “Nom nom nom!”
Jen – “I need to get some more noms.”
It is almost certain that the word economics was coined without *nom nom nom* in mind. But if it was not intentional, it was foresighted to put NOM right in the middle of “economics,” as the concept of noming is so central to economics.