A conversation centered around food. Derived from the popular expression "Om nom nom". Often occurring in health class or with friends when there is nothing left to say. The new alternative for talking about the weather.
"Yo. I love cupcakes."
"Omg! Red velvet is my FAVORITE!"
"Whoahh, this is totally a nomversation.."
"I had no idea what to say to her. It ended up being a really awkward nomversation."