Guy #1: That Whopper JR was simply nomtastic.
Guy #2: Hell yeah, bro.
Guy #1: I'm hungry...
Guy #2: Then lets nom!
Guy #1: I'm hungry....
Guy #2: That hot dog vendor over there looks like its got some nice noms. Lets go.
2. To mouth and/or bite someone in a sexual or non-sexual way.
3. An exaggeration of the noise made during one or both of the above activities, as originated by Lolcats.
"Oh man... I want to nom him lots."
"And she was all like, 'Om nom nom nom.'"