“Gropyer” (often spelled “Groypers”) refers to a loosely organized far-right online movement in the U.S. associated with white nationalist and extremist views, led primarily by Nick Fuentes.

They position themselves as “America First” conservatives, but are known for anti-immigrant, antisemitic, and homophobic rhetoric, often trolling mainstream conservatives online and at events.

(http://www.autoadmit.com/thread.php?thread_id=5788250&forum_id=2/#49363398)