The Song of Ice & Fire Generation
Basically people (mainly 2010s adults, not kids) who grew up watching the hit TV show Game of Thrones (adapted from George R. R. Martin's A Song of Ice & Fire series). They would normally cosplay as the characters or play games based on the series. They would also attend the Ice and Fire Con which celebrates the series as well as the show itself.
As a hardcore fan of Game of Thrones, I'm proudly part of the Song of Ice & Fire generation. Never have I seen an American fantasy show leave that much of an impact on our culture.