the sound one makes while chewing off his or her own arm. tends to happen more often while listening to silly drag queens sing a song!
On Sunday night I Om nom Om Nom nom my arm to easy the pain which was caused by the cat calls they said was a love song duet.... :)
by WhatTheFoxSays September 9, 2014
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First person: *Om nom noms* leaf cupcake.

Second person: "Did you see how Aki was om nom noming that leaf cupcake!"

"Om nom noms" is the present progressive of "to nom" which means "to eat with enthusiasm." Therefore, "om nom noms" means "eating with enthusiasm".
by OneMultipleCode June 27, 2013
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