Top definition
The sound made whilst eating or referring to something as tasty, in most cases food. An alternative to 'nomnomnom' :D
A girl called Laurley is sitting in Chemistry listening to her teacher's lecture on halide ions.

Teacher: A halide ion is a halogen atom bearing a negative charge
Laurley: OMNOMZ
by alalalaaah May 18, 2009
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Dirty Sanchez Plush

It does not matter how you do it. It's a Fecal Mustache.

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