Really yummy food that is incredibly nang.
The person eating the delicious food may say "om nom nom" as they eat to show how much they are enjoying it.
"Om nom nom, that food was nomtastic!"
"Oh wow Becky! Your cakes were nomtastic!"
"Becky always makes nomtastic food"
by TheMasterWarriorSheep April 7, 2009
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used to describe what you're eating as fantastic.

2. it's so good that it needs it's own descriptive word that can't describe anything else as fantastic
This dinner is so good that it needs it's own descriptive word that can't describe anything else as fantastic so it's NOMtastic
by AleciaLJ May 29, 2009
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