When food is so delicious it surpasses phenomenal status and is termed pheNomNomenal, as a result of the multiple noms it induces.
This cheese burger is phenomenal... no wait! It's pheNomNomenal! Nom! Nom!
When food tastes so good you eat it all up like NOMNOMNOM!
John: I can't believe we ate all of those pot brownies last night.
Sue: Yeah, they were pheNOMNOMenal!