Nouveau cake

Someone who brags about cake all the time and how they're so knowledgeable about cake but they don't even know anything about cake because one year ago they were eating pound cakes from 7-11 and then they saw one episode of cake boss and now think they're cake Picasso but they're not okay.

Person One: "Last year I was eating twinkies for a buck but now I'm feasting on 200 dollar three tiered vanilla cakes made by Laduree"

Person Two: "you're so nouveau cake. Gross"