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To eat noisily and ostentatiously; nom
Lobster, you're too lazy. Go omnombulate on something.
by DrIhnlipsad May 28, 2011
To munch; eat in an ostentatious manner, usually chewing something up while pushing it into your mouth as seen in the original Parry Grip Nomnomnomnomnomnomnomnomnomnom video. However, usually now "omnomnom" means eating something
Wait, I have to go omnombulate my dinner.
by PylotheHU May 13, 2011