2. Exploration through oral fixation, i.e. seeing the world with one's mouth.
3. A sexual act; see: fellatio, eating out (lol, nom at the restaurant)
2. B: Um... Is she nomming my arm?
G: Yeah, she does that cuz her lips are more sensitive than her fingertips.
B: Oh, okay.
3. Despite their reputation for being selfless lovers (get it? sarcasm!)men often think about nomming their partners. It's just with revulsion.