Poptard

Peer, especially 35 or younger, who is wholly and naively oblivious to pop culture, and not because he or she thinks it's cool not to know pop culture. Individual is simply in another world.

Henry: Joe asked me to get him an Ariana Grande at Starbucks.

Zachary: That poptard probably doesn't even know who she is. Him knowing about their underground menu is akin to a preschooler knowing quantum physics.