Definitions by hippopenguin

Nyom 

The sound a hippo makes when it is in the mood to mate

As the male (hippo) approached the female (hippo), he seemed to say, ''nyom nyom nyom''. To which she replied by shaking her hippo hips and spread her legs and they did the hippo hustle

Nyom by hippopenguin December 16, 2012

OMC 

Basically a replacement for OMG, but instead of god at the end I thought a more iconic figure:Charizard.
The meaning is can range from surprise to 'that's just awesome'.

Everybody I just won the lottery, OMC!
OMC, that guy just jumped off a bridge!

OMC by HippoPenguin October 4, 2010