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Delicious, delectable, scrumptious; Having qualities that facilitate rapid consumption and enjoyment.

Stems from the phrases om nom, om nom nom, or nom nom nom: onomatopoeical adjectives based on the sound emitted when something is so delicious (either through hunger or flavorological value) that one gnaws through it without regard to cleanliness or etiquette.
by cryomaniak June 22, 2009
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