The sound you make after seeing something so delicious that you just want to eat it all up (whether it is food or a female).

For a first-hand example, see the movie Role Models, when Augie is served chicken fingers.
In the movie Role Models, after his order of chicken fingers arrives at the restaurant:
Augie: *mmm num num num num num*

After seeing pictures of Avril Lavigne in Maxim:
Me: *mmm num num num num num*
by outerbanx January 1, 2009
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1. A childish way to describe pleasant-tasting food, similar to 'yum'. Rather like 'yum' it is also used to describe something appealing to senses other than taste.

2. Baby-talk for food.

3. An abbreviation for 'number'.
1. "Num num.. that's good pie."

2. "Mmm, baby food.. num nums for babykins!"

3. Num 3, num 4.
by Rip Van Winkle August 12, 2005
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Woah, this is good icecream! NUM NUMS!!!

I wish my parents allowed me to have a sex! NUM NUMMMSS!!!
by P. S January 26, 2005
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Look at the mommy breast feeding the baby.... I wish I could get some of that num num!!!
by olliepervert August 18, 2010
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A num-num is composed of pure beauty. They have amazing smiles, magnificent eyes, and stunning bodys. They are also called "chrails." A num-num is unlike any other girl in existence. They are loving, caring, kind, beautiful, sexy, extremely smart, and VERY hard to find. Once a num-num has found a partner, it is a life-long bond. Nothing can separate the num-num from the mate. Once a mate has been found, it is called a "kailebs." The kailebs job is to make the num-num happy, and to always be there when need be. The mathematical equation for the num-num/kailebs realtionship is as follows;

A num-num + a kailebs = forever & always
I love my num-num to death, she is more beautiful than any other thing or person in the whole wide world!!
by LeKaileb September 13, 2012
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Similar to "Noms" but used for sweet things like Ice Cream or Candy.
All your Num-Num's are belong to me!
by DietBroccoli December 11, 2008
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REALLY good person - fun , to make you happy, warm and loved
I want my NUM NUMS! I went to Cleveland and snuggled with my nums.
by JT987 December 22, 2008
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