The word's origins stem from the words insomnia, meaning to not be able to sleep; and NOMNOMNOM, an internet meme indicating a furious and unstoppable feeding frenzy.
The inability to sleep due to hunger, generally resolved by late night or early morning snacking on foods of questionable nutritional value.
I tried to sleep at 23:00 last night after a late gym session but it just wasn't happening. That left over pizza did the trick though... a little insomnomnomnia!
insomnia-enduced eating. this usually includes starring into your fridge at the lights and lack of food, making you hangry until you can't decide if you want food or sleep more than the other. Often ends in regretful dietary choices.