Something -- usually food -- that is so absolutely delectable and delicious that you must define it by the sound you make while eating it - "NOM NOM NOM".
This usually defines things found on Thanksgiving, like Mashed 'Taters and gravy, Mac and Cheese, and Ice Cream.
Occasionally it may refer to a person, but it's not recommended to do so, as it can be very insulting.
Oh my God, that turkey last night was absolutely nomlicious! I couldn't stop eating!
Janice, this fresh apple pie is absolutely nomlicious, you put just the right amount of cinnamon in it!
Daa-a-amn, that girl's booty is nomlicious, oh I could hit that! Mm!
An adjective describing how wonderfully incredible something is to the senses. Usually pertaining to food, but can also be used to define attractiveness.
An extension to nom.
These Nutella and banana crepes are nomalicious.
Did you see Angelina Jolie? She's nomalicious.
Zombies thinks brains are nomalicious.